Home / 5,439.27-8,158.98-1,543.67

Finding the Fourth Proportional to 5,439.27, 8,158.98 and 1,543.67

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Solution

The fourth proportional to 5,439.27, 8,158.98 and 1,543.67 is: 2,315.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.27 : 8,158.98 = 1,543.67 : x
  2. Step 2: Convert to fraction form
    5,439.27/8,158.98 = 1,543.67/x
  3. Step 3: Cross multiply
    5,439.27x = 8,158.98 × 1,543.67
  4. Step 4: Simplify right side
    5,439.27x = 12,594,805.46
  5. Step 5: Solve for x
    x = 12,594,805.46/5,439.27
  6. Step 6: Final answer
    x = 2,315.53

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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.