Home / 2,070.38-2,857.13-1,371.75

Finding the Fourth Proportional to 2,070.38, 2,857.13 and 1,371.75

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Solution

The fourth proportional to 2,070.38, 2,857.13 and 1,371.75 is: 1,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.38 : 2,857.13 = 1,371.75 : x
  2. Step 2: Convert to fraction form
    2,070.38/2,857.13 = 1,371.75/x
  3. Step 3: Cross multiply
    2,070.38x = 2,857.13 × 1,371.75
  4. Step 4: Simplify right side
    2,070.38x = 3,919,261.22
  5. Step 5: Solve for x
    x = 3,919,261.22/2,070.38
  6. Step 6: Final answer
    x = 1,893.02

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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.