Home / 1,687.18-2,530.44-591.85

Finding the Fourth Proportional to 1,687.18, 2,530.44 and 591.85

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Solution

The fourth proportional to 1,687.18, 2,530.44 and 591.85 is: 887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.18 : 2,530.44 = 591.85 : x
  2. Step 2: Convert to fraction form
    1,687.18/2,530.44 = 591.85/x
  3. Step 3: Cross multiply
    1,687.18x = 2,530.44 × 591.85
  4. Step 4: Simplify right side
    1,687.18x = 1,497,640.91
  5. Step 5: Solve for x
    x = 1,497,640.91/1,687.18
  6. Step 6: Final answer
    x = 887.66

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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.