Home / 1,038.26-1,556.91-551.18

Finding the Fourth Proportional to 1,038.26, 1,556.91 and 551.18

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Solution

The fourth proportional to 1,038.26, 1,556.91 and 551.18 is: 826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.26 : 1,556.91 = 551.18 : x
  2. Step 2: Convert to fraction form
    1,038.26/1,556.91 = 551.18/x
  3. Step 3: Cross multiply
    1,038.26x = 1,556.91 × 551.18
  4. Step 4: Simplify right side
    1,038.26x = 858,141.55
  5. Step 5: Solve for x
    x = 858,141.55/1,038.26
  6. Step 6: Final answer
    x = 826.52

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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.