Home / 2,254.77-3,112.10-1,370.38

Finding the Fourth Proportional to 2,254.77, 3,112.10 and 1,370.38

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Solution

The fourth proportional to 2,254.77, 3,112.10 and 1,370.38 is: 1,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.77 : 3,112.10 = 1,370.38 : x
  2. Step 2: Convert to fraction form
    2,254.77/3,112.10 = 1,370.38/x
  3. Step 3: Cross multiply
    2,254.77x = 3,112.10 × 1,370.38
  4. Step 4: Simplify right side
    2,254.77x = 4,264,759.60
  5. Step 5: Solve for x
    x = 4,264,759.60/2,254.77
  6. Step 6: Final answer
    x = 1,891.44

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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.