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Finding the Fourth Proportional to 1,526.71, 2,293.14 and 911.62

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Solution

The fourth proportional to 1,526.71, 2,293.14 and 911.62 is: 1,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.71 : 2,293.14 = 911.62 : x
  2. Step 2: Convert to fraction form
    1,526.71/2,293.14 = 911.62/x
  3. Step 3: Cross multiply
    1,526.71x = 2,293.14 × 911.62
  4. Step 4: Simplify right side
    1,526.71x = 2,090,472.29
  5. Step 5: Solve for x
    x = 2,090,472.29/1,526.71
  6. Step 6: Final answer
    x = 1,369.27

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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.