Home / 3,417.78-5,126.68-1,955.90

Finding the Fourth Proportional to 3,417.78, 5,126.68 and 1,955.90

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Solution

The fourth proportional to 3,417.78, 5,126.68 and 1,955.90 is: 2,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.78 : 5,126.68 = 1,955.90 : x
  2. Step 2: Convert to fraction form
    3,417.78/5,126.68 = 1,955.90/x
  3. Step 3: Cross multiply
    3,417.78x = 5,126.68 × 1,955.90
  4. Step 4: Simplify right side
    3,417.78x = 10,027,277.67
  5. Step 5: Solve for x
    x = 10,027,277.67/3,417.78
  6. Step 6: Final answer
    x = 2,933.85

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1.5x scale

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.