Home / 7,211.17-10,818.69-2,280.90

Finding the Fourth Proportional to 7,211.17, 10,818.69 and 2,280.90

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Solution

The fourth proportional to 7,211.17, 10,818.69 and 2,280.90 is: 3,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.17 : 10,818.69 = 2,280.90 : x
  2. Step 2: Convert to fraction form
    7,211.17/10,818.69 = 2,280.90/x
  3. Step 3: Cross multiply
    7,211.17x = 10,818.69 × 2,280.90
  4. Step 4: Simplify right side
    7,211.17x = 24,676,350.02
  5. Step 5: Solve for x
    x = 24,676,350.02/7,211.17
  6. Step 6: Final answer
    x = 3,421.96

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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.