Home / 3,149.68-4,724.16-841.36

Finding the Fourth Proportional to 3,149.68, 4,724.16 and 841.36

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Solution

The fourth proportional to 3,149.68, 4,724.16 and 841.36 is: 1,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.68 : 4,724.16 = 841.36 : x
  2. Step 2: Convert to fraction form
    3,149.68/4,724.16 = 841.36/x
  3. Step 3: Cross multiply
    3,149.68x = 4,724.16 × 841.36
  4. Step 4: Simplify right side
    3,149.68x = 3,974,719.26
  5. Step 5: Solve for x
    x = 3,974,719.26/3,149.68
  6. Step 6: Final answer
    x = 1,261.94

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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.