Home / 1,970.11-2,954.24-1,148.61

Finding the Fourth Proportional to 1,970.11, 2,954.24 and 1,148.61

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Solution

The fourth proportional to 1,970.11, 2,954.24 and 1,148.61 is: 1,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.11 : 2,954.24 = 1,148.61 : x
  2. Step 2: Convert to fraction form
    1,970.11/2,954.24 = 1,148.61/x
  3. Step 3: Cross multiply
    1,970.11x = 2,954.24 × 1,148.61
  4. Step 4: Simplify right side
    1,970.11x = 3,393,279.25
  5. Step 5: Solve for x
    x = 3,393,279.25/1,970.11
  6. Step 6: Final answer
    x = 1,722.38

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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.