Home / 3,117.83-4,302.38-1,791.05

Finding the Fourth Proportional to 3,117.83, 4,302.38 and 1,791.05

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Solution

The fourth proportional to 3,117.83, 4,302.38 and 1,791.05 is: 2,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.83 : 4,302.38 = 1,791.05 : x
  2. Step 2: Convert to fraction form
    3,117.83/4,302.38 = 1,791.05/x
  3. Step 3: Cross multiply
    3,117.83x = 4,302.38 × 1,791.05
  4. Step 4: Simplify right side
    3,117.83x = 7,705,760.66
  5. Step 5: Solve for x
    x = 7,705,760.66/3,117.83
  6. Step 6: Final answer
    x = 2,471.52

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1.5x scale

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.