Home / 3,080.28-4,616.78-1,231

Finding the Fourth Proportional to 3,080.28, 4,616.78 and 1,231

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Solution

The fourth proportional to 3,080.28, 4,616.78 and 1,231 is: 1,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.28 : 4,616.78 = 1,231 : x
  2. Step 2: Convert to fraction form
    3,080.28/4,616.78 = 1,231/x
  3. Step 3: Cross multiply
    3,080.28x = 4,616.78 × 1,231
  4. Step 4: Simplify right side
    3,080.28x = 5,683,256.18
  5. Step 5: Solve for x
    x = 5,683,256.18/3,080.28
  6. Step 6: Final answer
    x = 1,845.05

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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.