Home / 2,764.48-4,140.96-1,304.80

Finding the Fourth Proportional to 2,764.48, 4,140.96 and 1,304.80

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Solution

The fourth proportional to 2,764.48, 4,140.96 and 1,304.80 is: 1,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.48 : 4,140.96 = 1,304.80 : x
  2. Step 2: Convert to fraction form
    2,764.48/4,140.96 = 1,304.80/x
  3. Step 3: Cross multiply
    2,764.48x = 4,140.96 × 1,304.80
  4. Step 4: Simplify right side
    2,764.48x = 5,403,124.61
  5. Step 5: Solve for x
    x = 5,403,124.61/2,764.48
  6. Step 6: Final answer
    x = 1,954.48

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1.5x scale

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.