Home / 4,914.64-6,782.16-2,789.74

Finding the Fourth Proportional to 4,914.64, 6,782.16 and 2,789.74

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Solution

The fourth proportional to 4,914.64, 6,782.16 and 2,789.74 is: 3,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.64 : 6,782.16 = 2,789.74 : x
  2. Step 2: Convert to fraction form
    4,914.64/6,782.16 = 2,789.74/x
  3. Step 3: Cross multiply
    4,914.64x = 6,782.16 × 2,789.74
  4. Step 4: Simplify right side
    4,914.64x = 18,920,463.04
  5. Step 5: Solve for x
    x = 18,920,463.04/4,914.64
  6. Step 6: Final answer
    x = 3,849.82

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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.