Home / 1,385.26-2,076.30-605.14

Finding the Fourth Proportional to 1,385.26, 2,076.30 and 605.14

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Solution

The fourth proportional to 1,385.26, 2,076.30 and 605.14 is: 907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.26 : 2,076.30 = 605.14 : x
  2. Step 2: Convert to fraction form
    1,385.26/2,076.30 = 605.14/x
  3. Step 3: Cross multiply
    1,385.26x = 2,076.30 × 605.14
  4. Step 4: Simplify right side
    1,385.26x = 1,256,446.99
  5. Step 5: Solve for x
    x = 1,256,446.99/1,385.26
  6. Step 6: Final answer
    x = 907.01

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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.