Home / 5,439.96-8,159.94-1,543.86

Finding the Fourth Proportional to 5,439.96, 8,159.94 and 1,543.86

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Solution

The fourth proportional to 5,439.96, 8,159.94 and 1,543.86 is: 2,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.96 : 8,159.94 = 1,543.86 : x
  2. Step 2: Convert to fraction form
    5,439.96/8,159.94 = 1,543.86/x
  3. Step 3: Cross multiply
    5,439.96x = 8,159.94 × 1,543.86
  4. Step 4: Simplify right side
    5,439.96x = 12,597,804.97
  5. Step 5: Solve for x
    x = 12,597,804.97/5,439.96
  6. Step 6: Final answer
    x = 2,315.79

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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.