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Finding the Fourth Proportional to 1,674.47, 2,511.73 and 634.19

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Solution

The fourth proportional to 1,674.47, 2,511.73 and 634.19 is: 951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.47 : 2,511.73 = 634.19 : x
  2. Step 2: Convert to fraction form
    1,674.47/2,511.73 = 634.19/x
  3. Step 3: Cross multiply
    1,674.47x = 2,511.73 × 634.19
  4. Step 4: Simplify right side
    1,674.47x = 1,592,918.74
  5. Step 5: Solve for x
    x = 1,592,918.74/1,674.47
  6. Step 6: Final answer
    x = 951.30

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1.5x scale

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.