Home / 1,748.80-2,619.78-1,316.44

Finding the Fourth Proportional to 1,748.80, 2,619.78 and 1,316.44

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Solution

The fourth proportional to 1,748.80, 2,619.78 and 1,316.44 is: 1,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.80 : 2,619.78 = 1,316.44 : x
  2. Step 2: Convert to fraction form
    1,748.80/2,619.78 = 1,316.44/x
  3. Step 3: Cross multiply
    1,748.80x = 2,619.78 × 1,316.44
  4. Step 4: Simplify right side
    1,748.80x = 3,448,783.18
  5. Step 5: Solve for x
    x = 3,448,783.18/1,748.80
  6. Step 6: Final answer
    x = 1,972.09

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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.