Home / 2,201.15-3,302.49-1,378.45

Finding the Fourth Proportional to 2,201.15, 3,302.49 and 1,378.45

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Solution

The fourth proportional to 2,201.15, 3,302.49 and 1,378.45 is: 2,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.15 : 3,302.49 = 1,378.45 : x
  2. Step 2: Convert to fraction form
    2,201.15/3,302.49 = 1,378.45/x
  3. Step 3: Cross multiply
    2,201.15x = 3,302.49 × 1,378.45
  4. Step 4: Simplify right side
    2,201.15x = 4,552,326.64
  5. Step 5: Solve for x
    x = 4,552,326.64/2,201.15
  6. Step 6: Final answer
    x = 2,068.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.