Home / 1,586.14-2,379.15-490.52

Finding the Fourth Proportional to 1,586.14, 2,379.15 and 490.52

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Solution

The fourth proportional to 1,586.14, 2,379.15 and 490.52 is: 735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.14 : 2,379.15 = 490.52 : x
  2. Step 2: Convert to fraction form
    1,586.14/2,379.15 = 490.52/x
  3. Step 3: Cross multiply
    1,586.14x = 2,379.15 × 490.52
  4. Step 4: Simplify right side
    1,586.14x = 1,167,026.61
  5. Step 5: Solve for x
    x = 1,167,026.61/1,586.14
  6. Step 6: Final answer
    x = 735.77

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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.