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Finding the Fourth Proportional to 7,602.80, 10,491.87 and 4,245.60

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Solution

The fourth proportional to 7,602.80, 10,491.87 and 4,245.60 is: 5,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,602.80 : 10,491.87 = 4,245.60 : x
  2. Step 2: Convert to fraction form
    7,602.80/10,491.87 = 4,245.60/x
  3. Step 3: Cross multiply
    7,602.80x = 10,491.87 × 4,245.60
  4. Step 4: Simplify right side
    7,602.80x = 44,544,267.66
  5. Step 5: Solve for x
    x = 44,544,267.66/7,602.80
  6. Step 6: Final answer
    x = 5,858.93

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Half 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.