Home / 5,872.80-8,106.68-3,886.08

Finding the Fourth Proportional to 5,872.80, 8,106.68 and 3,886.08

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Solution

The fourth proportional to 5,872.80, 8,106.68 and 3,886.08 is: 5,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.80 : 8,106.68 = 3,886.08 : x
  2. Step 2: Convert to fraction form
    5,872.80/8,106.68 = 3,886.08/x
  3. Step 3: Cross multiply
    5,872.80x = 8,106.68 × 3,886.08
  4. Step 4: Simplify right side
    5,872.80x = 31,503,187.58
  5. Step 5: Solve for x
    x = 31,503,187.58/5,872.80
  6. Step 6: Final answer
    x = 5,364.25

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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.