Home / 7,242.28-10,865.85-3,080.50

Finding the Fourth Proportional to 7,242.28, 10,865.85 and 3,080.50

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Solution

The fourth proportional to 7,242.28, 10,865.85 and 3,080.50 is: 4,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.28 : 10,865.85 = 3,080.50 : x
  2. Step 2: Convert to fraction form
    7,242.28/10,865.85 = 3,080.50/x
  3. Step 3: Cross multiply
    7,242.28x = 10,865.85 × 3,080.50
  4. Step 4: Simplify right side
    7,242.28x = 33,472,212.21
  5. Step 5: Solve for x
    x = 33,472,212.21/7,242.28
  6. Step 6: Final answer
    x = 4,621.78

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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.