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Finding the Fourth Proportional to 5,787.80, 8,681.70 and 2,504.60

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Solution

The fourth proportional to 5,787.80, 8,681.70 and 2,504.60 is: 3,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.80 : 8,681.70 = 2,504.60 : x
  2. Step 2: Convert to fraction form
    5,787.80/8,681.70 = 2,504.60/x
  3. Step 3: Cross multiply
    5,787.80x = 8,681.70 × 2,504.60
  4. Step 4: Simplify right side
    5,787.80x = 21,744,185.82
  5. Step 5: Solve for x
    x = 21,744,185.82/5,787.80
  6. Step 6: Final answer
    x = 3,756.90

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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.