Home / 4,977.78-6,869.36-2,853.44

Finding the Fourth Proportional to 4,977.78, 6,869.36 and 2,853.44

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Solution

The fourth proportional to 4,977.78, 6,869.36 and 2,853.44 is: 3,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.78 : 6,869.36 = 2,853.44 : x
  2. Step 2: Convert to fraction form
    4,977.78/6,869.36 = 2,853.44/x
  3. Step 3: Cross multiply
    4,977.78x = 6,869.36 × 2,853.44
  4. Step 4: Simplify right side
    4,977.78x = 19,601,305.15
  5. Step 5: Solve for x
    x = 19,601,305.15/4,977.78
  6. Step 6: Final answer
    x = 3,937.76

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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.