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Finding the Fourth Proportional to 6,603.39, 9,113.22 and 3,771.63

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Solution

The fourth proportional to 6,603.39, 9,113.22 and 3,771.63 is: 5,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.39 : 9,113.22 = 3,771.63 : x
  2. Step 2: Convert to fraction form
    6,603.39/9,113.22 = 3,771.63/x
  3. Step 3: Cross multiply
    6,603.39x = 9,113.22 × 3,771.63
  4. Step 4: Simplify right side
    6,603.39x = 34,371,693.95
  5. Step 5: Solve for x
    x = 34,371,693.95/6,603.39
  6. Step 6: Final answer
    x = 5,205.16

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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.