Home / 7,142.83-10,718.68-3,445.44

Finding the Fourth Proportional to 7,142.83, 10,718.68 and 3,445.44

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Solution

The fourth proportional to 7,142.83, 10,718.68 and 3,445.44 is: 5,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.83 : 10,718.68 = 3,445.44 : x
  2. Step 2: Convert to fraction form
    7,142.83/10,718.68 = 3,445.44/x
  3. Step 3: Cross multiply
    7,142.83x = 10,718.68 × 3,445.44
  4. Step 4: Simplify right side
    7,142.83x = 36,930,568.82
  5. Step 5: Solve for x
    x = 36,930,568.82/7,142.83
  6. Step 6: Final answer
    x = 5,170.30

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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.