Home / 1,728.97-2,385.98-943.02

Finding the Fourth Proportional to 1,728.97, 2,385.98 and 943.02

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Solution

The fourth proportional to 1,728.97, 2,385.98 and 943.02 is: 1,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.97 : 2,385.98 = 943.02 : x
  2. Step 2: Convert to fraction form
    1,728.97/2,385.98 = 943.02/x
  3. Step 3: Cross multiply
    1,728.97x = 2,385.98 × 943.02
  4. Step 4: Simplify right side
    1,728.97x = 2,250,026.86
  5. Step 5: Solve for x
    x = 2,250,026.86/1,728.97
  6. Step 6: Final answer
    x = 1,301.37

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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.