Home / 3,612.75-5,421.56-1,304.25

Finding the Fourth Proportional to 3,612.75, 5,421.56 and 1,304.25

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Solution

The fourth proportional to 3,612.75, 5,421.56 and 1,304.25 is: 1,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.75 : 5,421.56 = 1,304.25 : x
  2. Step 2: Convert to fraction form
    3,612.75/5,421.56 = 1,304.25/x
  3. Step 3: Cross multiply
    3,612.75x = 5,421.56 × 1,304.25
  4. Step 4: Simplify right side
    3,612.75x = 7,071,063.11
  5. Step 5: Solve for x
    x = 7,071,063.11/3,612.75
  6. Step 6: Final answer
    x = 1,957.25

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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.