Home / 1,342.05-2,012.85-367.92

Finding the Fourth Proportional to 1,342.05, 2,012.85 and 367.92

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Solution

The fourth proportional to 1,342.05, 2,012.85 and 367.92 is: 551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.05 : 2,012.85 = 367.92 : x
  2. Step 2: Convert to fraction form
    1,342.05/2,012.85 = 367.92/x
  3. Step 3: Cross multiply
    1,342.05x = 2,012.85 × 367.92
  4. Step 4: Simplify right side
    1,342.05x = 740,567.77
  5. Step 5: Solve for x
    x = 740,567.77/1,342.05
  6. Step 6: Final answer
    x = 551.82

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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.