Home / 3,155.20-4,732.96-1,207.12

Finding the Fourth Proportional to 3,155.20, 4,732.96 and 1,207.12

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Solution

The fourth proportional to 3,155.20, 4,732.96 and 1,207.12 is: 1,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.20 : 4,732.96 = 1,207.12 : x
  2. Step 2: Convert to fraction form
    3,155.20/4,732.96 = 1,207.12/x
  3. Step 3: Cross multiply
    3,155.20x = 4,732.96 × 1,207.12
  4. Step 4: Simplify right side
    3,155.20x = 5,713,250.68
  5. Step 5: Solve for x
    x = 5,713,250.68/3,155.20
  6. Step 6: Final answer
    x = 1,810.74

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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.