Home / 5,787.84-7,987.80-3,270.48

Finding the Fourth Proportional to 5,787.84, 7,987.80 and 3,270.48

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Solution

The fourth proportional to 5,787.84, 7,987.80 and 3,270.48 is: 4,513.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.84 : 7,987.80 = 3,270.48 : x
  2. Step 2: Convert to fraction form
    5,787.84/7,987.80 = 3,270.48/x
  3. Step 3: Cross multiply
    5,787.84x = 7,987.80 × 3,270.48
  4. Step 4: Simplify right side
    5,787.84x = 26,123,940.14
  5. Step 5: Solve for x
    x = 26,123,940.14/5,787.84
  6. Step 6: Final answer
    x = 4,513.59

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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.