Home / 2,854.40-3,931.18-2,650.28

Finding the Fourth Proportional to 2,854.40, 3,931.18 and 2,650.28

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Solution

The fourth proportional to 2,854.40, 3,931.18 and 2,650.28 is: 3,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.40 : 3,931.18 = 2,650.28 : x
  2. Step 2: Convert to fraction form
    2,854.40/3,931.18 = 2,650.28/x
  3. Step 3: Cross multiply
    2,854.40x = 3,931.18 × 2,650.28
  4. Step 4: Simplify right side
    2,854.40x = 10,418,727.73
  5. Step 5: Solve for x
    x = 10,418,727.73/2,854.40
  6. Step 6: Final answer
    x = 3,650.06

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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.