Home / 5,136.16-7,085.52-3,246.88

Finding the Fourth Proportional to 5,136.16, 7,085.52 and 3,246.88

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Solution

The fourth proportional to 5,136.16, 7,085.52 and 3,246.88 is: 4,479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.16 : 7,085.52 = 3,246.88 : x
  2. Step 2: Convert to fraction form
    5,136.16/7,085.52 = 3,246.88/x
  3. Step 3: Cross multiply
    5,136.16x = 7,085.52 × 3,246.88
  4. Step 4: Simplify right side
    5,136.16x = 23,005,833.18
  5. Step 5: Solve for x
    x = 23,005,833.18/5,136.16
  6. Step 6: Final answer
    x = 4,479.19

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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.