Home / 7,010.28-9,672.84-4,215.96

Finding the Fourth Proportional to 7,010.28, 9,672.84 and 4,215.96

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Solution

The fourth proportional to 7,010.28, 9,672.84 and 4,215.96 is: 5,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.28 : 9,672.84 = 4,215.96 : x
  2. Step 2: Convert to fraction form
    7,010.28/9,672.84 = 4,215.96/x
  3. Step 3: Cross multiply
    7,010.28x = 9,672.84 × 4,215.96
  4. Step 4: Simplify right side
    7,010.28x = 40,780,306.53
  5. Step 5: Solve for x
    x = 40,780,306.53/7,010.28
  6. Step 6: Final answer
    x = 5,817.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.