Home / 5,179.08-7,147.20-3,084.40

Finding the Fourth Proportional to 5,179.08, 7,147.20 and 3,084.40

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Solution

The fourth proportional to 5,179.08, 7,147.20 and 3,084.40 is: 4,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.08 : 7,147.20 = 3,084.40 : x
  2. Step 2: Convert to fraction form
    5,179.08/7,147.20 = 3,084.40/x
  3. Step 3: Cross multiply
    5,179.08x = 7,147.20 × 3,084.40
  4. Step 4: Simplify right side
    5,179.08x = 22,044,823.68
  5. Step 5: Solve for x
    x = 22,044,823.68/5,179.08
  6. Step 6: Final answer
    x = 4,256.51

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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.