Home / 5,438.77-8,157.98-1,543.18

Finding the Fourth Proportional to 5,438.77, 8,157.98 and 1,543.18

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Solution

The fourth proportional to 5,438.77, 8,157.98 and 1,543.18 is: 2,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.77 : 8,157.98 = 1,543.18 : x
  2. Step 2: Convert to fraction form
    5,438.77/8,157.98 = 1,543.18/x
  3. Step 3: Cross multiply
    5,438.77x = 8,157.98 × 1,543.18
  4. Step 4: Simplify right side
    5,438.77x = 12,589,231.58
  5. Step 5: Solve for x
    x = 12,589,231.58/5,438.77
  6. Step 6: Final answer
    x = 2,314.72

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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.