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Finding the Fourth Proportional to 2,863.92, 4,261.58 and 2,854.20

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Solution

The fourth proportional to 2,863.92, 4,261.58 and 2,854.20 is: 4,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.92 : 4,261.58 = 2,854.20 : x
  2. Step 2: Convert to fraction form
    2,863.92/4,261.58 = 2,854.20/x
  3. Step 3: Cross multiply
    2,863.92x = 4,261.58 × 2,854.20
  4. Step 4: Simplify right side
    2,863.92x = 12,163,387.37
  5. Step 5: Solve for x
    x = 12,163,387.37/2,863.92
  6. Step 6: Final answer
    x = 4,247.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.