Home / 3,154.67-4,728.56-1,304.80

Finding the Fourth Proportional to 3,154.67, 4,728.56 and 1,304.80

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Solution

The fourth proportional to 3,154.67, 4,728.56 and 1,304.80 is: 1,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.67 : 4,728.56 = 1,304.80 : x
  2. Step 2: Convert to fraction form
    3,154.67/4,728.56 = 1,304.80/x
  3. Step 3: Cross multiply
    3,154.67x = 4,728.56 × 1,304.80
  4. Step 4: Simplify right side
    3,154.67x = 6,169,825.09
  5. Step 5: Solve for x
    x = 6,169,825.09/3,154.67
  6. Step 6: Final answer
    x = 1,955.78

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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.