Home / 3,432.30-5,150.76-1,872.81

Finding the Fourth Proportional to 3,432.30, 5,150.76 and 1,872.81

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Solution

The fourth proportional to 3,432.30, 5,150.76 and 1,872.81 is: 2,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.30 : 5,150.76 = 1,872.81 : x
  2. Step 2: Convert to fraction form
    3,432.30/5,150.76 = 1,872.81/x
  3. Step 3: Cross multiply
    3,432.30x = 5,150.76 × 1,872.81
  4. Step 4: Simplify right side
    3,432.30x = 9,646,394.84
  5. Step 5: Solve for x
    x = 9,646,394.84/3,432.30
  6. Step 6: Final answer
    x = 2,810.48

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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.