Home / 1,576.33-2,175.21-913.06

Finding the Fourth Proportional to 1,576.33, 2,175.21 and 913.06

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Solution

The fourth proportional to 1,576.33, 2,175.21 and 913.06 is: 1,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.33 : 2,175.21 = 913.06 : x
  2. Step 2: Convert to fraction form
    1,576.33/2,175.21 = 913.06/x
  3. Step 3: Cross multiply
    1,576.33x = 2,175.21 × 913.06
  4. Step 4: Simplify right side
    1,576.33x = 1,986,097.24
  5. Step 5: Solve for x
    x = 1,986,097.24/1,576.33
  6. Step 6: Final answer
    x = 1,259.95

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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.