Home / 1,356.55-2,034.37-945.88

Finding the Fourth Proportional to 1,356.55, 2,034.37 and 945.88

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Solution

The fourth proportional to 1,356.55, 2,034.37 and 945.88 is: 1,418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.55 : 2,034.37 = 945.88 : x
  2. Step 2: Convert to fraction form
    1,356.55/2,034.37 = 945.88/x
  3. Step 3: Cross multiply
    1,356.55x = 2,034.37 × 945.88
  4. Step 4: Simplify right side
    1,356.55x = 1,924,260.67
  5. Step 5: Solve for x
    x = 1,924,260.67/1,356.55
  6. Step 6: Final answer
    x = 1,418.50

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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.