Home / 1,516.31-2,272.79-1,393.29

Finding the Fourth Proportional to 1,516.31, 2,272.79 and 1,393.29

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Solution

The fourth proportional to 1,516.31, 2,272.79 and 1,393.29 is: 2,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.31 : 2,272.79 = 1,393.29 : x
  2. Step 2: Convert to fraction form
    1,516.31/2,272.79 = 1,393.29/x
  3. Step 3: Cross multiply
    1,516.31x = 2,272.79 × 1,393.29
  4. Step 4: Simplify right side
    1,516.31x = 3,166,648.61
  5. Step 5: Solve for x
    x = 3,166,648.61/1,516.31
  6. Step 6: Final answer
    x = 2,088.40

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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.