Home / 2,280.89-3,418.09-1,127.45

Finding the Fourth Proportional to 2,280.89, 3,418.09 and 1,127.45

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Solution

The fourth proportional to 2,280.89, 3,418.09 and 1,127.45 is: 1,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.89 : 3,418.09 = 1,127.45 : x
  2. Step 2: Convert to fraction form
    2,280.89/3,418.09 = 1,127.45/x
  3. Step 3: Cross multiply
    2,280.89x = 3,418.09 × 1,127.45
  4. Step 4: Simplify right side
    2,280.89x = 3,853,725.57
  5. Step 5: Solve for x
    x = 3,853,725.57/2,280.89
  6. Step 6: Final answer
    x = 1,689.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.