Home / 5,787.91-8,684.63-2,865.57

Finding the Fourth Proportional to 5,787.91, 8,684.63 and 2,865.57

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Solution

The fourth proportional to 5,787.91, 8,684.63 and 2,865.57 is: 4,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.91 : 8,684.63 = 2,865.57 : x
  2. Step 2: Convert to fraction form
    5,787.91/8,684.63 = 2,865.57/x
  3. Step 3: Cross multiply
    5,787.91x = 8,684.63 × 2,865.57
  4. Step 4: Simplify right side
    5,787.91x = 24,886,415.19
  5. Step 5: Solve for x
    x = 24,886,415.19/5,787.91
  6. Step 6: Final answer
    x = 4,299.72

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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.