Home / 1,576.16-2,171.66-1,133.29

Finding the Fourth Proportional to 1,576.16, 2,171.66 and 1,133.29

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Solution

The fourth proportional to 1,576.16, 2,171.66 and 1,133.29 is: 1,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.16 : 2,171.66 = 1,133.29 : x
  2. Step 2: Convert to fraction form
    1,576.16/2,171.66 = 1,133.29/x
  3. Step 3: Cross multiply
    1,576.16x = 2,171.66 × 1,133.29
  4. Step 4: Simplify right side
    1,576.16x = 2,461,123.98
  5. Step 5: Solve for x
    x = 2,461,123.98/1,576.16
  6. Step 6: Final answer
    x = 1,561.47

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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.