Home / 3,426.20-4,728.10-1,854.28

Finding the Fourth Proportional to 3,426.20, 4,728.10 and 1,854.28

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Solution

The fourth proportional to 3,426.20, 4,728.10 and 1,854.28 is: 2,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.20 : 4,728.10 = 1,854.28 : x
  2. Step 2: Convert to fraction form
    3,426.20/4,728.10 = 1,854.28/x
  3. Step 3: Cross multiply
    3,426.20x = 4,728.10 × 1,854.28
  4. Step 4: Simplify right side
    3,426.20x = 8,767,221.27
  5. Step 5: Solve for x
    x = 8,767,221.27/3,426.20
  6. Step 6: Final answer
    x = 2,558.88

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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.