Home / 5,787.39-7,986.57-3,134.79

Finding the Fourth Proportional to 5,787.39, 7,986.57 and 3,134.79

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Solution

The fourth proportional to 5,787.39, 7,986.57 and 3,134.79 is: 4,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.39 : 7,986.57 = 3,134.79 : x
  2. Step 2: Convert to fraction form
    5,787.39/7,986.57 = 3,134.79/x
  3. Step 3: Cross multiply
    5,787.39x = 7,986.57 × 3,134.79
  4. Step 4: Simplify right side
    5,787.39x = 25,036,219.77
  5. Step 5: Solve for x
    x = 25,036,219.77/5,787.39
  6. Step 6: Final answer
    x = 4,325.99

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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.