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Finding the Fourth Proportional to 1,475.09, 2,208.99 and 925.61

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Solution

The fourth proportional to 1,475.09, 2,208.99 and 925.61 is: 1,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.09 : 2,208.99 = 925.61 : x
  2. Step 2: Convert to fraction form
    1,475.09/2,208.99 = 925.61/x
  3. Step 3: Cross multiply
    1,475.09x = 2,208.99 × 925.61
  4. Step 4: Simplify right side
    1,475.09x = 2,044,668.76
  5. Step 5: Solve for x
    x = 2,044,668.76/1,475.09
  6. Step 6: Final answer
    x = 1,386.13

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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.