Home / 7,162.12-10,741.02-2,780.20

Finding the Fourth Proportional to 7,162.12, 10,741.02 and 2,780.20

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Solution

The fourth proportional to 7,162.12, 10,741.02 and 2,780.20 is: 4,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.12 : 10,741.02 = 2,780.20 : x
  2. Step 2: Convert to fraction form
    7,162.12/10,741.02 = 2,780.20/x
  3. Step 3: Cross multiply
    7,162.12x = 10,741.02 × 2,780.20
  4. Step 4: Simplify right side
    7,162.12x = 29,862,183.80
  5. Step 5: Solve for x
    x = 29,862,183.80/7,162.12
  6. Step 6: Final answer
    x = 4,169.46

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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.