Home / 6,612.32-9,124.40-3,779.12

Finding the Fourth Proportional to 6,612.32, 9,124.40 and 3,779.12

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Solution

The fourth proportional to 6,612.32, 9,124.40 and 3,779.12 is: 5,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.32 : 9,124.40 = 3,779.12 : x
  2. Step 2: Convert to fraction form
    6,612.32/9,124.40 = 3,779.12/x
  3. Step 3: Cross multiply
    6,612.32x = 9,124.40 × 3,779.12
  4. Step 4: Simplify right side
    6,612.32x = 34,482,234.79
  5. Step 5: Solve for x
    x = 34,482,234.79/6,612.32
  6. Step 6: Final answer
    x = 5,214.84

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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.