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Finding the Fourth Proportional to 3,866.55, 5,332.31 and 3,270.29

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Solution

The fourth proportional to 3,866.55, 5,332.31 and 3,270.29 is: 4,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.55 : 5,332.31 = 3,270.29 : x
  2. Step 2: Convert to fraction form
    3,866.55/5,332.31 = 3,270.29/x
  3. Step 3: Cross multiply
    3,866.55x = 5,332.31 × 3,270.29
  4. Step 4: Simplify right side
    3,866.55x = 17,438,169.32
  5. Step 5: Solve for x
    x = 17,438,169.32/3,866.55
  6. Step 6: Final answer
    x = 4,510.01

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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.