Home / 3,251.76-4,876.08-1,690.20

Finding the Fourth Proportional to 3,251.76, 4,876.08 and 1,690.20

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Solution

The fourth proportional to 3,251.76, 4,876.08 and 1,690.20 is: 2,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.76 : 4,876.08 = 1,690.20 : x
  2. Step 2: Convert to fraction form
    3,251.76/4,876.08 = 1,690.20/x
  3. Step 3: Cross multiply
    3,251.76x = 4,876.08 × 1,690.20
  4. Step 4: Simplify right side
    3,251.76x = 8,241,550.42
  5. Step 5: Solve for x
    x = 8,241,550.42/3,251.76
  6. Step 6: Final answer
    x = 2,534.49

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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.