Home / 1,934.85-2,901.29-636.15

Finding the Fourth Proportional to 1,934.85, 2,901.29 and 636.15

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Solution

The fourth proportional to 1,934.85, 2,901.29 and 636.15 is: 953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.85 : 2,901.29 = 636.15 : x
  2. Step 2: Convert to fraction form
    1,934.85/2,901.29 = 636.15/x
  3. Step 3: Cross multiply
    1,934.85x = 2,901.29 × 636.15
  4. Step 4: Simplify right side
    1,934.85x = 1,845,652.45
  5. Step 5: Solve for x
    x = 1,845,652.45/1,934.85
  6. Step 6: Final answer
    x = 953.90

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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.