Home / 1,424.15-2,136.45-602.43

Finding the Fourth Proportional to 1,424.15, 2,136.45 and 602.43

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Solution

The fourth proportional to 1,424.15, 2,136.45 and 602.43 is: 903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.15 : 2,136.45 = 602.43 : x
  2. Step 2: Convert to fraction form
    1,424.15/2,136.45 = 602.43/x
  3. Step 3: Cross multiply
    1,424.15x = 2,136.45 × 602.43
  4. Step 4: Simplify right side
    1,424.15x = 1,287,061.57
  5. Step 5: Solve for x
    x = 1,287,061.57/1,424.15
  6. Step 6: Final answer
    x = 903.74

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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.