Home / 7,640.04-10,543.15-4,282.85

Finding the Fourth Proportional to 7,640.04, 10,543.15 and 4,282.85

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Solution

The fourth proportional to 7,640.04, 10,543.15 and 4,282.85 is: 5,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.04 : 10,543.15 = 4,282.85 : x
  2. Step 2: Convert to fraction form
    7,640.04/10,543.15 = 4,282.85/x
  3. Step 3: Cross multiply
    7,640.04x = 10,543.15 × 4,282.85
  4. Step 4: Simplify right side
    7,640.04x = 45,154,729.98
  5. Step 5: Solve for x
    x = 45,154,729.98/7,640.04
  6. Step 6: Final answer
    x = 5,910.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.