Home / 1,576.28-2,175.66-913.04

Finding the Fourth Proportional to 1,576.28, 2,175.66 and 913.04

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Solution

The fourth proportional to 1,576.28, 2,175.66 and 913.04 is: 1,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.28 : 2,175.66 = 913.04 : x
  2. Step 2: Convert to fraction form
    1,576.28/2,175.66 = 913.04/x
  3. Step 3: Cross multiply
    1,576.28x = 2,175.66 × 913.04
  4. Step 4: Simplify right side
    1,576.28x = 1,986,453.73
  5. Step 5: Solve for x
    x = 1,986,453.73/1,576.28
  6. Step 6: Final answer
    x = 1,260.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.