Home / 1,590.12-2,386.08-617.04

Finding the Fourth Proportional to 1,590.12, 2,386.08 and 617.04

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Solution

The fourth proportional to 1,590.12, 2,386.08 and 617.04 is: 925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.12 : 2,386.08 = 617.04 : x
  2. Step 2: Convert to fraction form
    1,590.12/2,386.08 = 617.04/x
  3. Step 3: Cross multiply
    1,590.12x = 2,386.08 × 617.04
  4. Step 4: Simplify right side
    1,590.12x = 1,472,306.80
  5. Step 5: Solve for x
    x = 1,472,306.80/1,590.12
  6. Step 6: Final answer
    x = 925.91

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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.