Home / 1,034.20-1,551.27-340.90

Finding the Fourth Proportional to 1,034.20, 1,551.27 and 340.90

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Solution

The fourth proportional to 1,034.20, 1,551.27 and 340.90 is: 511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.20 : 1,551.27 = 340.90 : x
  2. Step 2: Convert to fraction form
    1,034.20/1,551.27 = 340.90/x
  3. Step 3: Cross multiply
    1,034.20x = 1,551.27 × 340.90
  4. Step 4: Simplify right side
    1,034.20x = 528,827.94
  5. Step 5: Solve for x
    x = 528,827.94/1,034.20
  6. Step 6: Final answer
    x = 511.34

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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.