Home / 5,624.16-8,436.47-2,113.80

Finding the Fourth Proportional to 5,624.16, 8,436.47 and 2,113.80

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Solution

The fourth proportional to 5,624.16, 8,436.47 and 2,113.80 is: 3,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.16 : 8,436.47 = 2,113.80 : x
  2. Step 2: Convert to fraction form
    5,624.16/8,436.47 = 2,113.80/x
  3. Step 3: Cross multiply
    5,624.16x = 8,436.47 × 2,113.80
  4. Step 4: Simplify right side
    5,624.16x = 17,832,999.72
  5. Step 5: Solve for x
    x = 17,832,999.72/5,624.16
  6. Step 6: Final answer
    x = 3,170.78

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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.