Home / 1,852.85-2,555.81-1,223.37

Finding the Fourth Proportional to 1,852.85, 2,555.81 and 1,223.37

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Solution

The fourth proportional to 1,852.85, 2,555.81 and 1,223.37 is: 1,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.85 : 2,555.81 = 1,223.37 : x
  2. Step 2: Convert to fraction form
    1,852.85/2,555.81 = 1,223.37/x
  3. Step 3: Cross multiply
    1,852.85x = 2,555.81 × 1,223.37
  4. Step 4: Simplify right side
    1,852.85x = 3,126,713.92
  5. Step 5: Solve for x
    x = 3,126,713.92/1,852.85
  6. Step 6: Final answer
    x = 1,687.52

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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.