Home / 7,125.97-10,690.02-2,195.20

Finding the Fourth Proportional to 7,125.97, 10,690.02 and 2,195.20

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Solution

The fourth proportional to 7,125.97, 10,690.02 and 2,195.20 is: 3,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.97 : 10,690.02 = 2,195.20 : x
  2. Step 2: Convert to fraction form
    7,125.97/10,690.02 = 2,195.20/x
  3. Step 3: Cross multiply
    7,125.97x = 10,690.02 × 2,195.20
  4. Step 4: Simplify right side
    7,125.97x = 23,466,667.48
  5. Step 5: Solve for x
    x = 23,466,667.48/7,125.97
  6. Step 6: Final answer
    x = 3,293.12

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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.