Home / 7,154.07-10,731.20-2,223.60

Finding the Fourth Proportional to 7,154.07, 10,731.20 and 2,223.60

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Solution

The fourth proportional to 7,154.07, 10,731.20 and 2,223.60 is: 3,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.07 : 10,731.20 = 2,223.60 : x
  2. Step 2: Convert to fraction form
    7,154.07/10,731.20 = 2,223.60/x
  3. Step 3: Cross multiply
    7,154.07x = 10,731.20 × 2,223.60
  4. Step 4: Simplify right side
    7,154.07x = 23,861,885.20
  5. Step 5: Solve for x
    x = 23,861,885.20/7,154.07
  6. Step 6: Final answer
    x = 3,335.43

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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.