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Finding the Fourth Proportional to 7,073.51, 9,759.78 and 4,088.79

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Solution

The fourth proportional to 7,073.51, 9,759.78 and 4,088.79 is: 5,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.51 : 9,759.78 = 4,088.79 : x
  2. Step 2: Convert to fraction form
    7,073.51/9,759.78 = 4,088.79/x
  3. Step 3: Cross multiply
    7,073.51x = 9,759.78 × 4,088.79
  4. Step 4: Simplify right side
    7,073.51x = 39,905,690.87
  5. Step 5: Solve for x
    x = 39,905,690.87/7,073.51
  6. Step 6: Final answer
    x = 5,641.57

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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.