Home / 4,578.80-6,868.60-1,291.88

Finding the Fourth Proportional to 4,578.80, 6,868.60 and 1,291.88

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Solution

The fourth proportional to 4,578.80, 6,868.60 and 1,291.88 is: 1,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.80 : 6,868.60 = 1,291.88 : x
  2. Step 2: Convert to fraction form
    4,578.80/6,868.60 = 1,291.88/x
  3. Step 3: Cross multiply
    4,578.80x = 6,868.60 × 1,291.88
  4. Step 4: Simplify right side
    4,578.80x = 8,873,420.91
  5. Step 5: Solve for x
    x = 8,873,420.91/4,578.80
  6. Step 6: Final answer
    x = 1,937.94

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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.