Home / 1,852.52-2,556.92-1,223.15

Finding the Fourth Proportional to 1,852.52, 2,556.92 and 1,223.15

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Solution

The fourth proportional to 1,852.52, 2,556.92 and 1,223.15 is: 1,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.52 : 2,556.92 = 1,223.15 : x
  2. Step 2: Convert to fraction form
    1,852.52/2,556.92 = 1,223.15/x
  3. Step 3: Cross multiply
    1,852.52x = 2,556.92 × 1,223.15
  4. Step 4: Simplify right side
    1,852.52x = 3,127,494.47
  5. Step 5: Solve for x
    x = 3,127,494.47/1,852.52
  6. Step 6: Final answer
    x = 1,688.24

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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.