Home / 2,254.45-3,111.15-1,369.66

Finding the Fourth Proportional to 2,254.45, 3,111.15 and 1,369.66

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Solution

The fourth proportional to 2,254.45, 3,111.15 and 1,369.66 is: 1,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.45 : 3,111.15 = 1,369.66 : x
  2. Step 2: Convert to fraction form
    2,254.45/3,111.15 = 1,369.66/x
  3. Step 3: Cross multiply
    2,254.45x = 3,111.15 × 1,369.66
  4. Step 4: Simplify right side
    2,254.45x = 4,261,217.71
  5. Step 5: Solve for x
    x = 4,261,217.71/2,254.45
  6. Step 6: Final answer
    x = 1,890.14

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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.