Home / 2,551.46-3,521-1,556.68

Finding the Fourth Proportional to 2,551.46, 3,521 and 1,556.68

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Solution

The fourth proportional to 2,551.46, 3,521 and 1,556.68 is: 2,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.46 : 3,521 = 1,556.68 : x
  2. Step 2: Convert to fraction form
    2,551.46/3,521 = 1,556.68/x
  3. Step 3: Cross multiply
    2,551.46x = 3,521 × 1,556.68
  4. Step 4: Simplify right side
    2,551.46x = 5,481,070.28
  5. Step 5: Solve for x
    x = 5,481,070.28/2,551.46
  6. Step 6: Final answer
    x = 2,148.21

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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.