Home / 5,246.90-7,240.68-3,008.78

Finding the Fourth Proportional to 5,246.90, 7,240.68 and 3,008.78

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Solution

The fourth proportional to 5,246.90, 7,240.68 and 3,008.78 is: 4,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.90 : 7,240.68 = 3,008.78 : x
  2. Step 2: Convert to fraction form
    5,246.90/7,240.68 = 3,008.78/x
  3. Step 3: Cross multiply
    5,246.90x = 7,240.68 × 3,008.78
  4. Step 4: Simplify right side
    5,246.90x = 21,785,613.17
  5. Step 5: Solve for x
    x = 21,785,613.17/5,246.90
  6. Step 6: Final answer
    x = 4,152.09

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1.5x scale

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.