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Finding the Fourth Proportional to 1,374.14, 2,061.30 and 552.41

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Solution

The fourth proportional to 1,374.14, 2,061.30 and 552.41 is: 828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.14 : 2,061.30 = 552.41 : x
  2. Step 2: Convert to fraction form
    1,374.14/2,061.30 = 552.41/x
  3. Step 3: Cross multiply
    1,374.14x = 2,061.30 × 552.41
  4. Step 4: Simplify right side
    1,374.14x = 1,138,674.82
  5. Step 5: Solve for x
    x = 1,138,674.82/1,374.14
  6. Step 6: Final answer
    x = 828.65

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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.