Home / 6,288.17-9,432.28-2,128.21

Finding the Fourth Proportional to 6,288.17, 9,432.28 and 2,128.21

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Solution

The fourth proportional to 6,288.17, 9,432.28 and 2,128.21 is: 3,192.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.17 : 9,432.28 = 2,128.21 : x
  2. Step 2: Convert to fraction form
    6,288.17/9,432.28 = 2,128.21/x
  3. Step 3: Cross multiply
    6,288.17x = 9,432.28 × 2,128.21
  4. Step 4: Simplify right side
    6,288.17x = 20,073,872.62
  5. Step 5: Solve for x
    x = 20,073,872.62/6,288.17
  6. Step 6: Final answer
    x = 3,192.32

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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.