Home / 7,288.30-10,057.26-4,143.88

Finding the Fourth Proportional to 7,288.30, 10,057.26 and 4,143.88

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Solution

The fourth proportional to 7,288.30, 10,057.26 and 4,143.88 is: 5,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.30 : 10,057.26 = 4,143.88 : x
  2. Step 2: Convert to fraction form
    7,288.30/10,057.26 = 4,143.88/x
  3. Step 3: Cross multiply
    7,288.30x = 10,057.26 × 4,143.88
  4. Step 4: Simplify right side
    7,288.30x = 41,676,078.57
  5. Step 5: Solve for x
    x = 41,676,078.57/7,288.30
  6. Step 6: Final answer
    x = 5,718.22

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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.