Home / 3,740.28-5,610.42-1,275.64

Finding the Fourth Proportional to 3,740.28, 5,610.42 and 1,275.64

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Solution

The fourth proportional to 3,740.28, 5,610.42 and 1,275.64 is: 1,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.28 : 5,610.42 = 1,275.64 : x
  2. Step 2: Convert to fraction form
    3,740.28/5,610.42 = 1,275.64/x
  3. Step 3: Cross multiply
    3,740.28x = 5,610.42 × 1,275.64
  4. Step 4: Simplify right side
    3,740.28x = 7,156,876.17
  5. Step 5: Solve for x
    x = 7,156,876.17/3,740.28
  6. Step 6: Final answer
    x = 1,913.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.