Home / 3,117.93-4,302.84-1,791.90

Finding the Fourth Proportional to 3,117.93, 4,302.84 and 1,791.90

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Solution

The fourth proportional to 3,117.93, 4,302.84 and 1,791.90 is: 2,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.93 : 4,302.84 = 1,791.90 : x
  2. Step 2: Convert to fraction form
    3,117.93/4,302.84 = 1,791.90/x
  3. Step 3: Cross multiply
    3,117.93x = 4,302.84 × 1,791.90
  4. Step 4: Simplify right side
    3,117.93x = 7,710,259.00
  5. Step 5: Solve for x
    x = 7,710,259.00/3,117.93
  6. Step 6: Final answer
    x = 2,472.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.