Home / 4,781.54-7,167.08-3,139.22

Finding the Fourth Proportional to 4,781.54, 7,167.08 and 3,139.22

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Solution

The fourth proportional to 4,781.54, 7,167.08 and 3,139.22 is: 4,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.54 : 7,167.08 = 3,139.22 : x
  2. Step 2: Convert to fraction form
    4,781.54/7,167.08 = 3,139.22/x
  3. Step 3: Cross multiply
    4,781.54x = 7,167.08 × 3,139.22
  4. Step 4: Simplify right side
    4,781.54x = 22,499,040.88
  5. Step 5: Solve for x
    x = 22,499,040.88/4,781.54
  6. Step 6: Final answer
    x = 4,705.40

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1.5x scale

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.