Home / 7,543.72-11,319.98-3,160.80

Finding the Fourth Proportional to 7,543.72, 11,319.98 and 3,160.80

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Solution

The fourth proportional to 7,543.72, 11,319.98 and 3,160.80 is: 4,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.72 : 11,319.98 = 3,160.80 : x
  2. Step 2: Convert to fraction form
    7,543.72/11,319.98 = 3,160.80/x
  3. Step 3: Cross multiply
    7,543.72x = 11,319.98 × 3,160.80
  4. Step 4: Simplify right side
    7,543.72x = 35,780,192.78
  5. Step 5: Solve for x
    x = 35,780,192.78/7,543.72
  6. Step 6: Final answer
    x = 4,743.04

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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.