Home / 1,937.44-2,680.71-1,689.28

Finding the Fourth Proportional to 1,937.44, 2,680.71 and 1,689.28

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Solution

The fourth proportional to 1,937.44, 2,680.71 and 1,689.28 is: 2,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.44 : 2,680.71 = 1,689.28 : x
  2. Step 2: Convert to fraction form
    1,937.44/2,680.71 = 1,689.28/x
  3. Step 3: Cross multiply
    1,937.44x = 2,680.71 × 1,689.28
  4. Step 4: Simplify right side
    1,937.44x = 4,528,447.94
  5. Step 5: Solve for x
    x = 4,528,447.94/1,937.44
  6. Step 6: Final answer
    x = 2,337.34

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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.