Home / 5,947.85-8,921.43-1,787.77

Finding the Fourth Proportional to 5,947.85, 8,921.43 and 1,787.77

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Solution

The fourth proportional to 5,947.85, 8,921.43 and 1,787.77 is: 2,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,947.85 : 8,921.43 = 1,787.77 : x
  2. Step 2: Convert to fraction form
    5,947.85/8,921.43 = 1,787.77/x
  3. Step 3: Cross multiply
    5,947.85x = 8,921.43 × 1,787.77
  4. Step 4: Simplify right side
    5,947.85x = 15,949,438.14
  5. Step 5: Solve for x
    x = 15,949,438.14/5,947.85
  6. Step 6: Final answer
    x = 2,681.55

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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.