Home / 1,332.27-2,008.55-1,238.31

Finding the Fourth Proportional to 1,332.27, 2,008.55 and 1,238.31

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Solution

The fourth proportional to 1,332.27, 2,008.55 and 1,238.31 is: 1,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.27 : 2,008.55 = 1,238.31 : x
  2. Step 2: Convert to fraction form
    1,332.27/2,008.55 = 1,238.31/x
  3. Step 3: Cross multiply
    1,332.27x = 2,008.55 × 1,238.31
  4. Step 4: Simplify right side
    1,332.27x = 2,487,210.65
  5. Step 5: Solve for x
    x = 2,487,210.65/1,332.27
  6. Step 6: Final answer
    x = 1,866.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.