Home / 1,013.30-1,519.24-551.29

Finding the Fourth Proportional to 1,013.30, 1,519.24 and 551.29

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Solution

The fourth proportional to 1,013.30, 1,519.24 and 551.29 is: 826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.30 : 1,519.24 = 551.29 : x
  2. Step 2: Convert to fraction form
    1,013.30/1,519.24 = 551.29/x
  3. Step 3: Cross multiply
    1,013.30x = 1,519.24 × 551.29
  4. Step 4: Simplify right side
    1,013.30x = 837,541.82
  5. Step 5: Solve for x
    x = 837,541.82/1,013.30
  6. Step 6: Final answer
    x = 826.55

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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.