Home / 3,927.07-5,877.78-2,886.80

Finding the Fourth Proportional to 3,927.07, 5,877.78 and 2,886.80

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Solution

The fourth proportional to 3,927.07, 5,877.78 and 2,886.80 is: 4,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.07 : 5,877.78 = 2,886.80 : x
  2. Step 2: Convert to fraction form
    3,927.07/5,877.78 = 2,886.80/x
  3. Step 3: Cross multiply
    3,927.07x = 5,877.78 × 2,886.80
  4. Step 4: Simplify right side
    3,927.07x = 16,967,975.30
  5. Step 5: Solve for x
    x = 16,967,975.30/3,927.07
  6. Step 6: Final answer
    x = 4,320.77

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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.