Home / 6,438.83-8,886.98-3,787.76

Finding the Fourth Proportional to 6,438.83, 8,886.98 and 3,787.76

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Solution

The fourth proportional to 6,438.83, 8,886.98 and 3,787.76 is: 5,227.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.83 : 8,886.98 = 3,787.76 : x
  2. Step 2: Convert to fraction form
    6,438.83/8,886.98 = 3,787.76/x
  3. Step 3: Cross multiply
    6,438.83x = 8,886.98 × 3,787.76
  4. Step 4: Simplify right side
    6,438.83x = 33,661,779.05
  5. Step 5: Solve for x
    x = 33,661,779.05/6,438.83
  6. Step 6: Final answer
    x = 5,227.94

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1.5x scale

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.