Home / 6,432.48-8,878.32-3,638.88

Finding the Fourth Proportional to 6,432.48, 8,878.32 and 3,638.88

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Solution

The fourth proportional to 6,432.48, 8,878.32 and 3,638.88 is: 5,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.48 : 8,878.32 = 3,638.88 : x
  2. Step 2: Convert to fraction form
    6,432.48/8,878.32 = 3,638.88/x
  3. Step 3: Cross multiply
    6,432.48x = 8,878.32 × 3,638.88
  4. Step 4: Simplify right side
    6,432.48x = 32,307,141.08
  5. Step 5: Solve for x
    x = 32,307,141.08/6,432.48
  6. Step 6: Final answer
    x = 5,022.50

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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.