Home / 2,972.57-4,458.21-1,217.13

Finding the Fourth Proportional to 2,972.57, 4,458.21 and 1,217.13

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Solution

The fourth proportional to 2,972.57, 4,458.21 and 1,217.13 is: 1,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.57 : 4,458.21 = 1,217.13 : x
  2. Step 2: Convert to fraction form
    2,972.57/4,458.21 = 1,217.13/x
  3. Step 3: Cross multiply
    2,972.57x = 4,458.21 × 1,217.13
  4. Step 4: Simplify right side
    2,972.57x = 5,426,210.12
  5. Step 5: Solve for x
    x = 5,426,210.12/2,972.57
  6. Step 6: Final answer
    x = 1,825.43

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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.