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Finding the Fourth Proportional to 7,772.57, 10,725.88 and 4,235.71

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Solution

The fourth proportional to 7,772.57, 10,725.88 and 4,235.71 is: 5,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.57 : 10,725.88 = 4,235.71 : x
  2. Step 2: Convert to fraction form
    7,772.57/10,725.88 = 4,235.71/x
  3. Step 3: Cross multiply
    7,772.57x = 10,725.88 × 4,235.71
  4. Step 4: Simplify right side
    7,772.57x = 45,431,696.00
  5. Step 5: Solve for x
    x = 45,431,696.00/7,772.57
  6. Step 6: Final answer
    x = 5,845.13

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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.