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Finding the Fourth Proportional to 1,357.35, 2,034.41 and 699.54

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Solution

The fourth proportional to 1,357.35, 2,034.41 and 699.54 is: 1,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.35 : 2,034.41 = 699.54 : x
  2. Step 2: Convert to fraction form
    1,357.35/2,034.41 = 699.54/x
  3. Step 3: Cross multiply
    1,357.35x = 2,034.41 × 699.54
  4. Step 4: Simplify right side
    1,357.35x = 1,423,155.30
  5. Step 5: Solve for x
    x = 1,423,155.30/1,357.35
  6. Step 6: Final answer
    x = 1,048.48

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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.