Home / 3,117.45-4,302.04-1,791.05

Finding the Fourth Proportional to 3,117.45, 4,302.04 and 1,791.05

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Solution

The fourth proportional to 3,117.45, 4,302.04 and 1,791.05 is: 2,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.45 : 4,302.04 = 1,791.05 : x
  2. Step 2: Convert to fraction form
    3,117.45/4,302.04 = 1,791.05/x
  3. Step 3: Cross multiply
    3,117.45x = 4,302.04 × 1,791.05
  4. Step 4: Simplify right side
    3,117.45x = 7,705,141.08
  5. Step 5: Solve for x
    x = 7,705,141.08/3,117.45
  6. Step 6: Final answer
    x = 2,471.62

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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.