Home / 3,131.64-4,322.64-1,937.04

Finding the Fourth Proportional to 3,131.64, 4,322.64 and 1,937.04

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Solution

The fourth proportional to 3,131.64, 4,322.64 and 1,937.04 is: 2,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.64 : 4,322.64 = 1,937.04 : x
  2. Step 2: Convert to fraction form
    3,131.64/4,322.64 = 1,937.04/x
  3. Step 3: Cross multiply
    3,131.64x = 4,322.64 × 1,937.04
  4. Step 4: Simplify right side
    3,131.64x = 8,373,126.59
  5. Step 5: Solve for x
    x = 8,373,126.59/3,131.64
  6. Step 6: Final answer
    x = 2,673.72

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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.