Home / 3,939.18-5,908.75-1,017.47

Finding the Fourth Proportional to 3,939.18, 5,908.75 and 1,017.47

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Solution

The fourth proportional to 3,939.18, 5,908.75 and 1,017.47 is: 1,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.18 : 5,908.75 = 1,017.47 : x
  2. Step 2: Convert to fraction form
    3,939.18/5,908.75 = 1,017.47/x
  3. Step 3: Cross multiply
    3,939.18x = 5,908.75 × 1,017.47
  4. Step 4: Simplify right side
    3,939.18x = 6,011,988.09
  5. Step 5: Solve for x
    x = 6,011,988.09/3,939.18
  6. Step 6: Final answer
    x = 1,526.20

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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.