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Finding the Fourth Proportional to 1,526.53, 2,289.79 and 372.28

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Solution

The fourth proportional to 1,526.53, 2,289.79 and 372.28 is: 558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.53 : 2,289.79 = 372.28 : x
  2. Step 2: Convert to fraction form
    1,526.53/2,289.79 = 372.28/x
  3. Step 3: Cross multiply
    1,526.53x = 2,289.79 × 372.28
  4. Step 4: Simplify right side
    1,526.53x = 852,429.71
  5. Step 5: Solve for x
    x = 852,429.71/1,526.53
  6. Step 6: Final answer
    x = 558.41

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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.