Home / 7,020.18-10,531.68-2,860.14

Finding the Fourth Proportional to 7,020.18, 10,531.68 and 2,860.14

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Solution

The fourth proportional to 7,020.18, 10,531.68 and 2,860.14 is: 4,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.18 : 10,531.68 = 2,860.14 : x
  2. Step 2: Convert to fraction form
    7,020.18/10,531.68 = 2,860.14/x
  3. Step 3: Cross multiply
    7,020.18x = 10,531.68 × 2,860.14
  4. Step 4: Simplify right side
    7,020.18x = 30,122,079.24
  5. Step 5: Solve for x
    x = 30,122,079.24/7,020.18
  6. Step 6: Final answer
    x = 4,290.78

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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.