Home / 1,562.20-2,343.27-407.95

Finding the Fourth Proportional to 1,562.20, 2,343.27 and 407.95

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Solution

The fourth proportional to 1,562.20, 2,343.27 and 407.95 is: 611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.20 : 2,343.27 = 407.95 : x
  2. Step 2: Convert to fraction form
    1,562.20/2,343.27 = 407.95/x
  3. Step 3: Cross multiply
    1,562.20x = 2,343.27 × 407.95
  4. Step 4: Simplify right side
    1,562.20x = 955,931.14
  5. Step 5: Solve for x
    x = 955,931.14/1,562.20
  6. Step 6: Final answer
    x = 611.91

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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.