Home / 5,146.70-7,102.22-2,909.07

Finding the Fourth Proportional to 5,146.70, 7,102.22 and 2,909.07

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Solution

The fourth proportional to 5,146.70, 7,102.22 and 2,909.07 is: 4,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.70 : 7,102.22 = 2,909.07 : x
  2. Step 2: Convert to fraction form
    5,146.70/7,102.22 = 2,909.07/x
  3. Step 3: Cross multiply
    5,146.70x = 7,102.22 × 2,909.07
  4. Step 4: Simplify right side
    5,146.70x = 20,660,840.59
  5. Step 5: Solve for x
    x = 20,660,840.59/5,146.70
  6. Step 6: Final answer
    x = 4,014.39

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Half scale
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Double scale
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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.