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Finding the Fourth Proportional to 1,612.84, 2,419.80 and 746.52

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Solution

The fourth proportional to 1,612.84, 2,419.80 and 746.52 is: 1,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.84 : 2,419.80 = 746.52 : x
  2. Step 2: Convert to fraction form
    1,612.84/2,419.80 = 746.52/x
  3. Step 3: Cross multiply
    1,612.84x = 2,419.80 × 746.52
  4. Step 4: Simplify right side
    1,612.84x = 1,806,429.10
  5. Step 5: Solve for x
    x = 1,806,429.10/1,612.84
  6. Step 6: Final answer
    x = 1,120.03

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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.