Home / 3,114.28-4,292.61-2,275.12

Finding the Fourth Proportional to 3,114.28, 4,292.61 and 2,275.12

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Solution

The fourth proportional to 3,114.28, 4,292.61 and 2,275.12 is: 3,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.28 : 4,292.61 = 2,275.12 : x
  2. Step 2: Convert to fraction form
    3,114.28/4,292.61 = 2,275.12/x
  3. Step 3: Cross multiply
    3,114.28x = 4,292.61 × 2,275.12
  4. Step 4: Simplify right side
    3,114.28x = 9,766,181.40
  5. Step 5: Solve for x
    x = 9,766,181.40/3,114.28
  6. Step 6: Final answer
    x = 3,135.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.