Home / 5,117.43-7,063.35-3,129.15

Finding the Fourth Proportional to 5,117.43, 7,063.35 and 3,129.15

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Solution

The fourth proportional to 5,117.43, 7,063.35 and 3,129.15 is: 4,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.43 : 7,063.35 = 3,129.15 : x
  2. Step 2: Convert to fraction form
    5,117.43/7,063.35 = 3,129.15/x
  3. Step 3: Cross multiply
    5,117.43x = 7,063.35 × 3,129.15
  4. Step 4: Simplify right side
    5,117.43x = 22,102,281.65
  5. Step 5: Solve for x
    x = 22,102,281.65/5,117.43
  6. Step 6: Final answer
    x = 4,319.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.