Home / 2,901.72-4,003.05-1,722.12

Finding the Fourth Proportional to 2,901.72, 4,003.05 and 1,722.12

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Solution

The fourth proportional to 2,901.72, 4,003.05 and 1,722.12 is: 2,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.72 : 4,003.05 = 1,722.12 : x
  2. Step 2: Convert to fraction form
    2,901.72/4,003.05 = 1,722.12/x
  3. Step 3: Cross multiply
    2,901.72x = 4,003.05 × 1,722.12
  4. Step 4: Simplify right side
    2,901.72x = 6,893,732.47
  5. Step 5: Solve for x
    x = 6,893,732.47/2,901.72
  6. Step 6: Final answer
    x = 2,375.74

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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.