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Finding the Fourth Proportional to 6,601.55, 9,903.57 and 2,653.11

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Solution

The fourth proportional to 6,601.55, 9,903.57 and 2,653.11 is: 3,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.55 : 9,903.57 = 2,653.11 : x
  2. Step 2: Convert to fraction form
    6,601.55/9,903.57 = 2,653.11/x
  3. Step 3: Cross multiply
    6,601.55x = 9,903.57 × 2,653.11
  4. Step 4: Simplify right side
    6,601.55x = 26,275,250.65
  5. Step 5: Solve for x
    x = 26,275,250.65/6,601.55
  6. Step 6: Final answer
    x = 3,980.17

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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.