Home / 6,218.71-8,579.65-3,529.61

Finding the Fourth Proportional to 6,218.71, 8,579.65 and 3,529.61

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Solution

The fourth proportional to 6,218.71, 8,579.65 and 3,529.61 is: 4,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.71 : 8,579.65 = 3,529.61 : x
  2. Step 2: Convert to fraction form
    6,218.71/8,579.65 = 3,529.61/x
  3. Step 3: Cross multiply
    6,218.71x = 8,579.65 × 3,529.61
  4. Step 4: Simplify right side
    6,218.71x = 30,282,818.44
  5. Step 5: Solve for x
    x = 30,282,818.44/6,218.71
  6. Step 6: Final answer
    x = 4,869.63

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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.