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Finding the Fourth Proportional to 6,603.84, 9,907.20 and 3,141.36

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Solution

The fourth proportional to 6,603.84, 9,907.20 and 3,141.36 is: 4,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.84 : 9,907.20 = 3,141.36 : x
  2. Step 2: Convert to fraction form
    6,603.84/9,907.20 = 3,141.36/x
  3. Step 3: Cross multiply
    6,603.84x = 9,907.20 × 3,141.36
  4. Step 4: Simplify right side
    6,603.84x = 31,122,081.79
  5. Step 5: Solve for x
    x = 31,122,081.79/6,603.84
  6. Step 6: Final answer
    x = 4,712.72

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1.5x scale

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.