Home / 1,340.89-2,011.53-508.27

Finding the Fourth Proportional to 1,340.89, 2,011.53 and 508.27

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Solution

The fourth proportional to 1,340.89, 2,011.53 and 508.27 is: 762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.89 : 2,011.53 = 508.27 : x
  2. Step 2: Convert to fraction form
    1,340.89/2,011.53 = 508.27/x
  3. Step 3: Cross multiply
    1,340.89x = 2,011.53 × 508.27
  4. Step 4: Simplify right side
    1,340.89x = 1,022,390.30
  5. Step 5: Solve for x
    x = 1,022,390.30/1,340.89
  6. Step 6: Final answer
    x = 762.47

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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.