Home / 3,418.56-5,123.68-1,774.20

Finding the Fourth Proportional to 3,418.56, 5,123.68 and 1,774.20

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Solution

The fourth proportional to 3,418.56, 5,123.68 and 1,774.20 is: 2,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.56 : 5,123.68 = 1,774.20 : x
  2. Step 2: Convert to fraction form
    3,418.56/5,123.68 = 1,774.20/x
  3. Step 3: Cross multiply
    3,418.56x = 5,123.68 × 1,774.20
  4. Step 4: Simplify right side
    3,418.56x = 9,090,433.06
  5. Step 5: Solve for x
    x = 9,090,433.06/3,418.56
  6. Step 6: Final answer
    x = 2,659.14

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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.