Home / 2,254.46-3,111.11-1,370.55

Finding the Fourth Proportional to 2,254.46, 3,111.11 and 1,370.55

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Solution

The fourth proportional to 2,254.46, 3,111.11 and 1,370.55 is: 1,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.46 : 3,111.11 = 1,370.55 : x
  2. Step 2: Convert to fraction form
    2,254.46/3,111.11 = 1,370.55/x
  3. Step 3: Cross multiply
    2,254.46x = 3,111.11 × 1,370.55
  4. Step 4: Simplify right side
    2,254.46x = 4,263,931.81
  5. Step 5: Solve for x
    x = 4,263,931.81/2,254.46
  6. Step 6: Final answer
    x = 1,891.33

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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.