Home / 1,246.72-1,868.57-551.89

Finding the Fourth Proportional to 1,246.72, 1,868.57 and 551.89

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Solution

The fourth proportional to 1,246.72, 1,868.57 and 551.89 is: 827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.72 : 1,868.57 = 551.89 : x
  2. Step 2: Convert to fraction form
    1,246.72/1,868.57 = 551.89/x
  3. Step 3: Cross multiply
    1,246.72x = 1,868.57 × 551.89
  4. Step 4: Simplify right side
    1,246.72x = 1,031,245.10
  5. Step 5: Solve for x
    x = 1,031,245.10/1,246.72
  6. Step 6: Final answer
    x = 827.17

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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.