Home / 7,279.29-10,921.24-2,599.20

Finding the Fourth Proportional to 7,279.29, 10,921.24 and 2,599.20

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Solution

The fourth proportional to 7,279.29, 10,921.24 and 2,599.20 is: 3,899.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.29 : 10,921.24 = 2,599.20 : x
  2. Step 2: Convert to fraction form
    7,279.29/10,921.24 = 2,599.20/x
  3. Step 3: Cross multiply
    7,279.29x = 10,921.24 × 2,599.20
  4. Step 4: Simplify right side
    7,279.29x = 28,386,432.40
  5. Step 5: Solve for x
    x = 28,386,432.40/7,279.29
  6. Step 6: Final answer
    x = 3,899.62

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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.