Home / 2,127.12-3,188.52-1,397.04

Finding the Fourth Proportional to 2,127.12, 3,188.52 and 1,397.04

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Solution

The fourth proportional to 2,127.12, 3,188.52 and 1,397.04 is: 2,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.12 : 3,188.52 = 1,397.04 : x
  2. Step 2: Convert to fraction form
    2,127.12/3,188.52 = 1,397.04/x
  3. Step 3: Cross multiply
    2,127.12x = 3,188.52 × 1,397.04
  4. Step 4: Simplify right side
    2,127.12x = 4,454,489.98
  5. Step 5: Solve for x
    x = 4,454,489.98/2,127.12
  6. Step 6: Final answer
    x = 2,094.14

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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.