Home / 2,355.05-3,249.75-1,360.19

Finding the Fourth Proportional to 2,355.05, 3,249.75 and 1,360.19

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Solution

The fourth proportional to 2,355.05, 3,249.75 and 1,360.19 is: 1,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.05 : 3,249.75 = 1,360.19 : x
  2. Step 2: Convert to fraction form
    2,355.05/3,249.75 = 1,360.19/x
  3. Step 3: Cross multiply
    2,355.05x = 3,249.75 × 1,360.19
  4. Step 4: Simplify right side
    2,355.05x = 4,420,279.20
  5. Step 5: Solve for x
    x = 4,420,279.20/2,355.05
  6. Step 6: Final answer
    x = 1,876.94

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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.