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Finding the Fourth Proportional to 1,526.91, 2,290.38 and 372.66

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Solution

The fourth proportional to 1,526.91, 2,290.38 and 372.66 is: 558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.91 : 2,290.38 = 372.66 : x
  2. Step 2: Convert to fraction form
    1,526.91/2,290.38 = 372.66/x
  3. Step 3: Cross multiply
    1,526.91x = 2,290.38 × 372.66
  4. Step 4: Simplify right side
    1,526.91x = 853,533.01
  5. Step 5: Solve for x
    x = 853,533.01/1,526.91
  6. Step 6: Final answer
    x = 558.99

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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.