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Finding the Fourth Proportional to 6,602.70, 9,112.80 and 3,770.10

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Solution

The fourth proportional to 6,602.70, 9,112.80 and 3,770.10 is: 5,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.70 : 9,112.80 = 3,770.10 : x
  2. Step 2: Convert to fraction form
    6,602.70/9,112.80 = 3,770.10/x
  3. Step 3: Cross multiply
    6,602.70x = 9,112.80 × 3,770.10
  4. Step 4: Simplify right side
    6,602.70x = 34,356,167.28
  5. Step 5: Solve for x
    x = 34,356,167.28/6,602.70
  6. Step 6: Final answer
    x = 5,203.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.