Home / 7,278.17-10,908.12-3,113.28

Finding the Fourth Proportional to 7,278.17, 10,908.12 and 3,113.28

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Solution

The fourth proportional to 7,278.17, 10,908.12 and 3,113.28 is: 4,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.17 : 10,908.12 = 3,113.28 : x
  2. Step 2: Convert to fraction form
    7,278.17/10,908.12 = 3,113.28/x
  3. Step 3: Cross multiply
    7,278.17x = 10,908.12 × 3,113.28
  4. Step 4: Simplify right side
    7,278.17x = 33,960,059.10
  5. Step 5: Solve for x
    x = 33,960,059.10/7,278.17
  6. Step 6: Final answer
    x = 4,666.02

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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.