Home / 6,432.28-8,877.81-4,072.75

Finding the Fourth Proportional to 6,432.28, 8,877.81 and 4,072.75

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Solution

The fourth proportional to 6,432.28, 8,877.81 and 4,072.75 is: 5,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.28 : 8,877.81 = 4,072.75 : x
  2. Step 2: Convert to fraction form
    6,432.28/8,877.81 = 4,072.75/x
  3. Step 3: Cross multiply
    6,432.28x = 8,877.81 × 4,072.75
  4. Step 4: Simplify right side
    6,432.28x = 36,157,100.68
  5. Step 5: Solve for x
    x = 36,157,100.68/6,432.28
  6. Step 6: Final answer
    x = 5,621.20

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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.