Home / 3,310.78-4,568.76-1,818.70

Finding the Fourth Proportional to 3,310.78, 4,568.76 and 1,818.70

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Solution

The fourth proportional to 3,310.78, 4,568.76 and 1,818.70 is: 2,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.78 : 4,568.76 = 1,818.70 : x
  2. Step 2: Convert to fraction form
    3,310.78/4,568.76 = 1,818.70/x
  3. Step 3: Cross multiply
    3,310.78x = 4,568.76 × 1,818.70
  4. Step 4: Simplify right side
    3,310.78x = 8,309,203.81
  5. Step 5: Solve for x
    x = 8,309,203.81/3,310.78
  6. Step 6: Final answer
    x = 2,509.74

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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.