Home / 1,749.44-2,621.28-1,288.16

Finding the Fourth Proportional to 1,749.44, 2,621.28 and 1,288.16

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Solution

The fourth proportional to 1,749.44, 2,621.28 and 1,288.16 is: 1,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.44 : 2,621.28 = 1,288.16 : x
  2. Step 2: Convert to fraction form
    1,749.44/2,621.28 = 1,288.16/x
  3. Step 3: Cross multiply
    1,749.44x = 2,621.28 × 1,288.16
  4. Step 4: Simplify right side
    1,749.44x = 3,376,628.04
  5. Step 5: Solve for x
    x = 3,376,628.04/1,749.44
  6. Step 6: Final answer
    x = 1,930.12

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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.