Home / 6,121.49-8,447.63-3,603.58

Finding the Fourth Proportional to 6,121.49, 8,447.63 and 3,603.58

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Solution

The fourth proportional to 6,121.49, 8,447.63 and 3,603.58 is: 4,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.49 : 8,447.63 = 3,603.58 : x
  2. Step 2: Convert to fraction form
    6,121.49/8,447.63 = 3,603.58/x
  3. Step 3: Cross multiply
    6,121.49x = 8,447.63 × 3,603.58
  4. Step 4: Simplify right side
    6,121.49x = 30,441,671.38
  5. Step 5: Solve for x
    x = 30,441,671.38/6,121.49
  6. Step 6: Final answer
    x = 4,972.92

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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.