Home / 3,718.18-5,131.60-2,302.32

Finding the Fourth Proportional to 3,718.18, 5,131.60 and 2,302.32

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Solution

The fourth proportional to 3,718.18, 5,131.60 and 2,302.32 is: 3,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.18 : 5,131.60 = 2,302.32 : x
  2. Step 2: Convert to fraction form
    3,718.18/5,131.60 = 2,302.32/x
  3. Step 3: Cross multiply
    3,718.18x = 5,131.60 × 2,302.32
  4. Step 4: Simplify right side
    3,718.18x = 11,814,585.31
  5. Step 5: Solve for x
    x = 11,814,585.31/3,718.18
  6. Step 6: Final answer
    x = 3,177.52

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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.