Home / 6,432.30-8,878.32-3,780.56

Finding the Fourth Proportional to 6,432.30, 8,878.32 and 3,780.56

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Solution

The fourth proportional to 6,432.30, 8,878.32 and 3,780.56 is: 5,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.30 : 8,878.32 = 3,780.56 : x
  2. Step 2: Convert to fraction form
    6,432.30/8,878.32 = 3,780.56/x
  3. Step 3: Cross multiply
    6,432.30x = 8,878.32 × 3,780.56
  4. Step 4: Simplify right side
    6,432.30x = 33,565,021.46
  5. Step 5: Solve for x
    x = 33,565,021.46/6,432.30
  6. Step 6: Final answer
    x = 5,218.20

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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.