Home / 2,146.24-3,219.68-607.20

Finding the Fourth Proportional to 2,146.24, 3,219.68 and 607.20

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Solution

The fourth proportional to 2,146.24, 3,219.68 and 607.20 is: 910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.24 : 3,219.68 = 607.20 : x
  2. Step 2: Convert to fraction form
    2,146.24/3,219.68 = 607.20/x
  3. Step 3: Cross multiply
    2,146.24x = 3,219.68 × 607.20
  4. Step 4: Simplify right side
    2,146.24x = 1,954,989.70
  5. Step 5: Solve for x
    x = 1,954,989.70/2,146.24
  6. Step 6: Final answer
    x = 910.89

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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.