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Finding the Fourth Proportional to 5,787.37, 7,986.54 and 3,134.76

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Solution

The fourth proportional to 5,787.37, 7,986.54 and 3,134.76 is: 4,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.37 : 7,986.54 = 3,134.76 : x
  2. Step 2: Convert to fraction form
    5,787.37/7,986.54 = 3,134.76/x
  3. Step 3: Cross multiply
    5,787.37x = 7,986.54 × 3,134.76
  4. Step 4: Simplify right side
    5,787.37x = 25,035,886.13
  5. Step 5: Solve for x
    x = 25,035,886.13/5,787.37
  6. Step 6: Final answer
    x = 4,325.95

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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.