Home / 2,148.81-2,964.78-1,264.44

Finding the Fourth Proportional to 2,148.81, 2,964.78 and 1,264.44

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Solution

The fourth proportional to 2,148.81, 2,964.78 and 1,264.44 is: 1,744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.81 : 2,964.78 = 1,264.44 : x
  2. Step 2: Convert to fraction form
    2,148.81/2,964.78 = 1,264.44/x
  3. Step 3: Cross multiply
    2,148.81x = 2,964.78 × 1,264.44
  4. Step 4: Simplify right side
    2,148.81x = 3,748,786.42
  5. Step 5: Solve for x
    x = 3,748,786.42/2,148.81
  6. Step 6: Final answer
    x = 1,744.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.