Home / 3,912.04-5,868.65-1,138.35

Finding the Fourth Proportional to 3,912.04, 5,868.65 and 1,138.35

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Solution

The fourth proportional to 3,912.04, 5,868.65 and 1,138.35 is: 1,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.04 : 5,868.65 = 1,138.35 : x
  2. Step 2: Convert to fraction form
    3,912.04/5,868.65 = 1,138.35/x
  3. Step 3: Cross multiply
    3,912.04x = 5,868.65 × 1,138.35
  4. Step 4: Simplify right side
    3,912.04x = 6,680,572.04
  5. Step 5: Solve for x
    x = 6,680,572.04/3,912.04
  6. Step 6: Final answer
    x = 1,707.70

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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.