Home / 3,148.80-4,723.14-1,068.78

Finding the Fourth Proportional to 3,148.80, 4,723.14 and 1,068.78

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Solution

The fourth proportional to 3,148.80, 4,723.14 and 1,068.78 is: 1,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.80 : 4,723.14 = 1,068.78 : x
  2. Step 2: Convert to fraction form
    3,148.80/4,723.14 = 1,068.78/x
  3. Step 3: Cross multiply
    3,148.80x = 4,723.14 × 1,068.78
  4. Step 4: Simplify right side
    3,148.80x = 5,047,997.57
  5. Step 5: Solve for x
    x = 5,047,997.57/3,148.80
  6. Step 6: Final answer
    x = 1,603.15

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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.