Home / 5,445.32-8,157.27-3,590.78

Finding the Fourth Proportional to 5,445.32, 8,157.27 and 3,590.78

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Solution

The fourth proportional to 5,445.32, 8,157.27 and 3,590.78 is: 5,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.32 : 8,157.27 = 3,590.78 : x
  2. Step 2: Convert to fraction form
    5,445.32/8,157.27 = 3,590.78/x
  3. Step 3: Cross multiply
    5,445.32x = 8,157.27 × 3,590.78
  4. Step 4: Simplify right side
    5,445.32x = 29,290,921.18
  5. Step 5: Solve for x
    x = 29,290,921.18/5,445.32
  6. Step 6: Final answer
    x = 5,379.11

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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.