Home / 3,251.80-4,487.08-1,925.20

Finding the Fourth Proportional to 3,251.80, 4,487.08 and 1,925.20

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Solution

The fourth proportional to 3,251.80, 4,487.08 and 1,925.20 is: 2,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.80 : 4,487.08 = 1,925.20 : x
  2. Step 2: Convert to fraction form
    3,251.80/4,487.08 = 1,925.20/x
  3. Step 3: Cross multiply
    3,251.80x = 4,487.08 × 1,925.20
  4. Step 4: Simplify right side
    3,251.80x = 8,638,526.42
  5. Step 5: Solve for x
    x = 8,638,526.42/3,251.80
  6. Step 6: Final answer
    x = 2,656.54

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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.