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Finding the Fourth Proportional to 5,655.40, 7,807.13 and 3,770.13

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Solution

The fourth proportional to 5,655.40, 7,807.13 and 3,770.13 is: 5,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.40 : 7,807.13 = 3,770.13 : x
  2. Step 2: Convert to fraction form
    5,655.40/7,807.13 = 3,770.13/x
  3. Step 3: Cross multiply
    5,655.40x = 7,807.13 × 3,770.13
  4. Step 4: Simplify right side
    5,655.40x = 29,433,895.03
  5. Step 5: Solve for x
    x = 29,433,895.03/5,655.40
  6. Step 6: Final answer
    x = 5,204.56

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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.