Home / 1,576.28-2,175.66-913.54

Finding the Fourth Proportional to 1,576.28, 2,175.66 and 913.54

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Solution

The fourth proportional to 1,576.28, 2,175.66 and 913.54 is: 1,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.28 : 2,175.66 = 913.54 : x
  2. Step 2: Convert to fraction form
    1,576.28/2,175.66 = 913.54/x
  3. Step 3: Cross multiply
    1,576.28x = 2,175.66 × 913.54
  4. Step 4: Simplify right side
    1,576.28x = 1,987,552.44
  5. Step 5: Solve for x
    x = 1,987,552.44/1,576.28
  6. Step 6: Final answer
    x = 1,260.91

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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.