Home / 4,869.90-6,719.76-2,773.98

Finding the Fourth Proportional to 4,869.90, 6,719.76 and 2,773.98

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Solution

The fourth proportional to 4,869.90, 6,719.76 and 2,773.98 is: 3,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.90 : 6,719.76 = 2,773.98 : x
  2. Step 2: Convert to fraction form
    4,869.90/6,719.76 = 2,773.98/x
  3. Step 3: Cross multiply
    4,869.90x = 6,719.76 × 2,773.98
  4. Step 4: Simplify right side
    4,869.90x = 18,640,479.84
  5. Step 5: Solve for x
    x = 18,640,479.84/4,869.90
  6. Step 6: Final answer
    x = 3,827.69

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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.