Home / 1,348.28-2,021.70-617.46

Finding the Fourth Proportional to 1,348.28, 2,021.70 and 617.46

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Solution

The fourth proportional to 1,348.28, 2,021.70 and 617.46 is: 925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.28 : 2,021.70 = 617.46 : x
  2. Step 2: Convert to fraction form
    1,348.28/2,021.70 = 617.46/x
  3. Step 3: Cross multiply
    1,348.28x = 2,021.70 × 617.46
  4. Step 4: Simplify right side
    1,348.28x = 1,248,318.88
  5. Step 5: Solve for x
    x = 1,248,318.88/1,348.28
  6. Step 6: Final answer
    x = 925.86

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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.