Home / 3,603.24-4,971.78-2,205

Finding the Fourth Proportional to 3,603.24, 4,971.78 and 2,205

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Solution

The fourth proportional to 3,603.24, 4,971.78 and 2,205 is: 3,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.24 : 4,971.78 = 2,205 : x
  2. Step 2: Convert to fraction form
    3,603.24/4,971.78 = 2,205/x
  3. Step 3: Cross multiply
    3,603.24x = 4,971.78 × 2,205
  4. Step 4: Simplify right side
    3,603.24x = 10,962,774.90
  5. Step 5: Solve for x
    x = 10,962,774.90/3,603.24
  6. Step 6: Final answer
    x = 3,042.48

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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.