Home / 4,878.28-7,318.18-1,590.61

Finding the Fourth Proportional to 4,878.28, 7,318.18 and 1,590.61

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Solution

The fourth proportional to 4,878.28, 7,318.18 and 1,590.61 is: 2,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.28 : 7,318.18 = 1,590.61 : x
  2. Step 2: Convert to fraction form
    4,878.28/7,318.18 = 1,590.61/x
  3. Step 3: Cross multiply
    4,878.28x = 7,318.18 × 1,590.61
  4. Step 4: Simplify right side
    4,878.28x = 11,640,333.70
  5. Step 5: Solve for x
    x = 11,640,333.70/4,878.28
  6. Step 6: Final answer
    x = 2,386.16

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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.