Home / 3,938.10-5,908.12-1,164.76

Finding the Fourth Proportional to 3,938.10, 5,908.12 and 1,164.76

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Solution

The fourth proportional to 3,938.10, 5,908.12 and 1,164.76 is: 1,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.10 : 5,908.12 = 1,164.76 : x
  2. Step 2: Convert to fraction form
    3,938.10/5,908.12 = 1,164.76/x
  3. Step 3: Cross multiply
    3,938.10x = 5,908.12 × 1,164.76
  4. Step 4: Simplify right side
    3,938.10x = 6,881,541.85
  5. Step 5: Solve for x
    x = 6,881,541.85/3,938.10
  6. Step 6: Final answer
    x = 1,747.43

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1.5x scale

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.