Home / 7,390.68-10,200.78-4,247.88

Finding the Fourth Proportional to 7,390.68, 10,200.78 and 4,247.88

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Solution

The fourth proportional to 7,390.68, 10,200.78 and 4,247.88 is: 5,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.68 : 10,200.78 = 4,247.88 : x
  2. Step 2: Convert to fraction form
    7,390.68/10,200.78 = 4,247.88/x
  3. Step 3: Cross multiply
    7,390.68x = 10,200.78 × 4,247.88
  4. Step 4: Simplify right side
    7,390.68x = 43,331,689.35
  5. Step 5: Solve for x
    x = 43,331,689.35/7,390.68
  6. Step 6: Final answer
    x = 5,863.02

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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.