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Finding the Fourth Proportional to 7,080.59, 10,622.16 and 2,918.28

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Solution

The fourth proportional to 7,080.59, 10,622.16 and 2,918.28 is: 4,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.59 : 10,622.16 = 2,918.28 : x
  2. Step 2: Convert to fraction form
    7,080.59/10,622.16 = 2,918.28/x
  3. Step 3: Cross multiply
    7,080.59x = 10,622.16 × 2,918.28
  4. Step 4: Simplify right side
    7,080.59x = 30,998,437.08
  5. Step 5: Solve for x
    x = 30,998,437.08/7,080.59
  6. Step 6: Final answer
    x = 4,377.95

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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.