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Finding the Fourth Proportional to 6,640.49, 9,960.73 and 4,554.17

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Solution

The fourth proportional to 6,640.49, 9,960.73 and 4,554.17 is: 6,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.49 : 9,960.73 = 4,554.17 : x
  2. Step 2: Convert to fraction form
    6,640.49/9,960.73 = 4,554.17/x
  3. Step 3: Cross multiply
    6,640.49x = 9,960.73 × 4,554.17
  4. Step 4: Simplify right side
    6,640.49x = 45,362,857.74
  5. Step 5: Solve for x
    x = 45,362,857.74/6,640.49
  6. Step 6: Final answer
    x = 6,831.25

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Similar ratio
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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.