Home / 5,765.85-8,645.13-2,988.36

Finding the Fourth Proportional to 5,765.85, 8,645.13 and 2,988.36

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Solution

The fourth proportional to 5,765.85, 8,645.13 and 2,988.36 is: 4,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.85 : 8,645.13 = 2,988.36 : x
  2. Step 2: Convert to fraction form
    5,765.85/8,645.13 = 2,988.36/x
  3. Step 3: Cross multiply
    5,765.85x = 8,645.13 × 2,988.36
  4. Step 4: Simplify right side
    5,765.85x = 25,834,760.69
  5. Step 5: Solve for x
    x = 25,834,760.69/5,765.85
  6. Step 6: Final answer
    x = 4,480.65

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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.