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Finding the Fourth Proportional to 1,828.70, 2,743.05 and 1,612.70

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Solution

The fourth proportional to 1,828.70, 2,743.05 and 1,612.70 is: 2,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.70 : 2,743.05 = 1,612.70 : x
  2. Step 2: Convert to fraction form
    1,828.70/2,743.05 = 1,612.70/x
  3. Step 3: Cross multiply
    1,828.70x = 2,743.05 × 1,612.70
  4. Step 4: Simplify right side
    1,828.70x = 4,423,716.74
  5. Step 5: Solve for x
    x = 4,423,716.74/1,828.70
  6. Step 6: Final answer
    x = 2,419.05

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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.