Home / 5,245.80-7,871.08-2,285.16

Finding the Fourth Proportional to 5,245.80, 7,871.08 and 2,285.16

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Solution

The fourth proportional to 5,245.80, 7,871.08 and 2,285.16 is: 3,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.80 : 7,871.08 = 2,285.16 : x
  2. Step 2: Convert to fraction form
    5,245.80/7,871.08 = 2,285.16/x
  3. Step 3: Cross multiply
    5,245.80x = 7,871.08 × 2,285.16
  4. Step 4: Simplify right side
    5,245.80x = 17,986,677.17
  5. Step 5: Solve for x
    x = 17,986,677.17/5,245.80
  6. Step 6: Final answer
    x = 3,428.78

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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.