Home / 1,541.18-2,311.68-386.94

Finding the Fourth Proportional to 1,541.18, 2,311.68 and 386.94

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Solution

The fourth proportional to 1,541.18, 2,311.68 and 386.94 is: 580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.18 : 2,311.68 = 386.94 : x
  2. Step 2: Convert to fraction form
    1,541.18/2,311.68 = 386.94/x
  3. Step 3: Cross multiply
    1,541.18x = 2,311.68 × 386.94
  4. Step 4: Simplify right side
    1,541.18x = 894,481.46
  5. Step 5: Solve for x
    x = 894,481.46/1,541.18
  6. Step 6: Final answer
    x = 580.39

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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.