Home / 5,787.15-7,986.36-3,134.67

Finding the Fourth Proportional to 5,787.15, 7,986.36 and 3,134.67

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Solution

The fourth proportional to 5,787.15, 7,986.36 and 3,134.67 is: 4,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.15 : 7,986.36 = 3,134.67 : x
  2. Step 2: Convert to fraction form
    5,787.15/7,986.36 = 3,134.67/x
  3. Step 3: Cross multiply
    5,787.15x = 7,986.36 × 3,134.67
  4. Step 4: Simplify right side
    5,787.15x = 25,034,603.10
  5. Step 5: Solve for x
    x = 25,034,603.10/5,787.15
  6. Step 6: Final answer
    x = 4,325.89

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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.