Home / 2,187.03-3,018.34-1,347.56

Finding the Fourth Proportional to 2,187.03, 3,018.34 and 1,347.56

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Solution

The fourth proportional to 2,187.03, 3,018.34 and 1,347.56 is: 1,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.03 : 3,018.34 = 1,347.56 : x
  2. Step 2: Convert to fraction form
    2,187.03/3,018.34 = 1,347.56/x
  3. Step 3: Cross multiply
    2,187.03x = 3,018.34 × 1,347.56
  4. Step 4: Simplify right side
    2,187.03x = 4,067,394.25
  5. Step 5: Solve for x
    x = 4,067,394.25/2,187.03
  6. Step 6: Final answer
    x = 1,859.78

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1.5x scale

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.