Home / 4,869.40-6,719.84-2,773.56

Finding the Fourth Proportional to 4,869.40, 6,719.84 and 2,773.56

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Solution

The fourth proportional to 4,869.40, 6,719.84 and 2,773.56 is: 3,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.40 : 6,719.84 = 2,773.56 : x
  2. Step 2: Convert to fraction form
    4,869.40/6,719.84 = 2,773.56/x
  3. Step 3: Cross multiply
    4,869.40x = 6,719.84 × 2,773.56
  4. Step 4: Simplify right side
    4,869.40x = 18,637,879.43
  5. Step 5: Solve for x
    x = 18,637,879.43/4,869.40
  6. Step 6: Final answer
    x = 3,827.55

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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.