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Finding the Fourth Proportional to 6,560, 9,052.80 and 3,616

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Solution

The fourth proportional to 6,560, 9,052.80 and 3,616 is: 4,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,560 : 9,052.80 = 3,616 : x
  2. Step 2: Convert to fraction form
    6,560/9,052.80 = 3,616/x
  3. Step 3: Cross multiply
    6,560x = 9,052.80 × 3,616
  4. Step 4: Simplify right side
    6,560x = 32,734,924.80
  5. Step 5: Solve for x
    x = 32,734,924.80/6,560
  6. Step 6: Final answer
    x = 4,990.08

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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.