Home / 7,859.06-11,787.30-2,311.77

Finding the Fourth Proportional to 7,859.06, 11,787.30 and 2,311.77

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Solution

The fourth proportional to 7,859.06, 11,787.30 and 2,311.77 is: 3,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.06 : 11,787.30 = 2,311.77 : x
  2. Step 2: Convert to fraction form
    7,859.06/11,787.30 = 2,311.77/x
  3. Step 3: Cross multiply
    7,859.06x = 11,787.30 × 2,311.77
  4. Step 4: Simplify right side
    7,859.06x = 27,249,526.52
  5. Step 5: Solve for x
    x = 27,249,526.52/7,859.06
  6. Step 6: Final answer
    x = 3,467.28

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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.