Home / 6,432.24-8,878.16-3,639.36

Finding the Fourth Proportional to 6,432.24, 8,878.16 and 3,639.36

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Solution

The fourth proportional to 6,432.24, 8,878.16 and 3,639.36 is: 5,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.24 : 8,878.16 = 3,639.36 : x
  2. Step 2: Convert to fraction form
    6,432.24/8,878.16 = 3,639.36/x
  3. Step 3: Cross multiply
    6,432.24x = 8,878.16 × 3,639.36
  4. Step 4: Simplify right side
    6,432.24x = 32,310,820.38
  5. Step 5: Solve for x
    x = 32,310,820.38/6,432.24
  6. Step 6: Final answer
    x = 5,023.26

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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.