Home / 2,972.32-4,457.20-1,124.92

Finding the Fourth Proportional to 2,972.32, 4,457.20 and 1,124.92

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Solution

The fourth proportional to 2,972.32, 4,457.20 and 1,124.92 is: 1,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.32 : 4,457.20 = 1,124.92 : x
  2. Step 2: Convert to fraction form
    2,972.32/4,457.20 = 1,124.92/x
  3. Step 3: Cross multiply
    2,972.32x = 4,457.20 × 1,124.92
  4. Step 4: Simplify right side
    2,972.32x = 5,013,993.42
  5. Step 5: Solve for x
    x = 5,013,993.42/2,972.32
  6. Step 6: Final answer
    x = 1,686.90

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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.