Home / 5,684.28-8,520.93-1,787.76

Finding the Fourth Proportional to 5,684.28, 8,520.93 and 1,787.76

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Solution

The fourth proportional to 5,684.28, 8,520.93 and 1,787.76 is: 2,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,684.28 : 8,520.93 = 1,787.76 : x
  2. Step 2: Convert to fraction form
    5,684.28/8,520.93 = 1,787.76/x
  3. Step 3: Cross multiply
    5,684.28x = 8,520.93 × 1,787.76
  4. Step 4: Simplify right side
    5,684.28x = 15,233,377.82
  5. Step 5: Solve for x
    x = 15,233,377.82/5,684.28
  6. Step 6: Final answer
    x = 2,679.91

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1.5x scale

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.