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Finding the Fourth Proportional to 7,068.81, 9,755.82 and 4,084.65

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Solution

The fourth proportional to 7,068.81, 9,755.82 and 4,084.65 is: 5,637.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.81 : 9,755.82 = 4,084.65 : x
  2. Step 2: Convert to fraction form
    7,068.81/9,755.82 = 4,084.65/x
  3. Step 3: Cross multiply
    7,068.81x = 9,755.82 × 4,084.65
  4. Step 4: Simplify right side
    7,068.81x = 39,849,110.16
  5. Step 5: Solve for x
    x = 39,849,110.16/7,068.81
  6. Step 6: Final answer
    x = 5,637.32

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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.