Home / 3,102.50-4,653.75-1,254.79

Finding the Fourth Proportional to 3,102.50, 4,653.75 and 1,254.79

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Solution

The fourth proportional to 3,102.50, 4,653.75 and 1,254.79 is: 1,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.50 : 4,653.75 = 1,254.79 : x
  2. Step 2: Convert to fraction form
    3,102.50/4,653.75 = 1,254.79/x
  3. Step 3: Cross multiply
    3,102.50x = 4,653.75 × 1,254.79
  4. Step 4: Simplify right side
    3,102.50x = 5,839,489.49
  5. Step 5: Solve for x
    x = 5,839,489.49/3,102.50
  6. Step 6: Final answer
    x = 1,882.19

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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.