Home / 1,729.89-2,381.19-1,508.45

Finding the Fourth Proportional to 1,729.89, 2,381.19 and 1,508.45

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Solution

The fourth proportional to 1,729.89, 2,381.19 and 1,508.45 is: 2,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.89 : 2,381.19 = 1,508.45 : x
  2. Step 2: Convert to fraction form
    1,729.89/2,381.19 = 1,508.45/x
  3. Step 3: Cross multiply
    1,729.89x = 2,381.19 × 1,508.45
  4. Step 4: Simplify right side
    1,729.89x = 3,591,894.15
  5. Step 5: Solve for x
    x = 3,591,894.15/1,729.89
  6. Step 6: Final answer
    x = 2,076.37

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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.