Home / 1,348.14-2,021.53-617.09

Finding the Fourth Proportional to 1,348.14, 2,021.53 and 617.09

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Solution

The fourth proportional to 1,348.14, 2,021.53 and 617.09 is: 925.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.14 : 2,021.53 = 617.09 : x
  2. Step 2: Convert to fraction form
    1,348.14/2,021.53 = 617.09/x
  3. Step 3: Cross multiply
    1,348.14x = 2,021.53 × 617.09
  4. Step 4: Simplify right side
    1,348.14x = 1,247,465.95
  5. Step 5: Solve for x
    x = 1,247,465.95/1,348.14
  6. Step 6: Final answer
    x = 925.32

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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.