Home / 1,590.30-2,382.21-1,426.41

Finding the Fourth Proportional to 1,590.30, 2,382.21 and 1,426.41

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Solution

The fourth proportional to 1,590.30, 2,382.21 and 1,426.41 is: 2,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.30 : 2,382.21 = 1,426.41 : x
  2. Step 2: Convert to fraction form
    1,590.30/2,382.21 = 1,426.41/x
  3. Step 3: Cross multiply
    1,590.30x = 2,382.21 × 1,426.41
  4. Step 4: Simplify right side
    1,590.30x = 3,398,008.17
  5. Step 5: Solve for x
    x = 3,398,008.17/1,590.30
  6. Step 6: Final answer
    x = 2,136.71

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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.