Home / 7,211.38-10,818.70-2,281.32

Finding the Fourth Proportional to 7,211.38, 10,818.70 and 2,281.32

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Solution

The fourth proportional to 7,211.38, 10,818.70 and 2,281.32 is: 3,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.38 : 10,818.70 = 2,281.32 : x
  2. Step 2: Convert to fraction form
    7,211.38/10,818.70 = 2,281.32/x
  3. Step 3: Cross multiply
    7,211.38x = 10,818.70 × 2,281.32
  4. Step 4: Simplify right side
    7,211.38x = 24,680,916.68
  5. Step 5: Solve for x
    x = 24,680,916.68/7,211.38
  6. Step 6: Final answer
    x = 3,422.50

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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.