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Finding the Fourth Proportional to 1,674.22, 2,510.92 and 634.32

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Solution

The fourth proportional to 1,674.22, 2,510.92 and 634.32 is: 951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.22 : 2,510.92 = 634.32 : x
  2. Step 2: Convert to fraction form
    1,674.22/2,510.92 = 634.32/x
  3. Step 3: Cross multiply
    1,674.22x = 2,510.92 × 634.32
  4. Step 4: Simplify right side
    1,674.22x = 1,592,726.77
  5. Step 5: Solve for x
    x = 1,592,726.77/1,674.22
  6. Step 6: Final answer
    x = 951.32

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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.