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Finding the Fourth Proportional to 1,041.80, 1,562.76 and 348.53

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Solution

The fourth proportional to 1,041.80, 1,562.76 and 348.53 is: 522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.80 : 1,562.76 = 348.53 : x
  2. Step 2: Convert to fraction form
    1,041.80/1,562.76 = 348.53/x
  3. Step 3: Cross multiply
    1,041.80x = 1,562.76 × 348.53
  4. Step 4: Simplify right side
    1,041.80x = 544,660.93
  5. Step 5: Solve for x
    x = 544,660.93/1,041.80
  6. Step 6: Final answer
    x = 522.81

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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.