Home / 2,124.16-3,187.18-1,149.12

Finding the Fourth Proportional to 2,124.16, 3,187.18 and 1,149.12

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Solution

The fourth proportional to 2,124.16, 3,187.18 and 1,149.12 is: 1,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.16 : 3,187.18 = 1,149.12 : x
  2. Step 2: Convert to fraction form
    2,124.16/3,187.18 = 1,149.12/x
  3. Step 3: Cross multiply
    2,124.16x = 3,187.18 × 1,149.12
  4. Step 4: Simplify right side
    2,124.16x = 3,662,452.28
  5. Step 5: Solve for x
    x = 3,662,452.28/2,124.16
  6. Step 6: Final answer
    x = 1,724.19

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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.