Home / 3,086.64-4,646.70-2,818.80

Finding the Fourth Proportional to 3,086.64, 4,646.70 and 2,818.80

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Solution

The fourth proportional to 3,086.64, 4,646.70 and 2,818.80 is: 4,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.64 : 4,646.70 = 2,818.80 : x
  2. Step 2: Convert to fraction form
    3,086.64/4,646.70 = 2,818.80/x
  3. Step 3: Cross multiply
    3,086.64x = 4,646.70 × 2,818.80
  4. Step 4: Simplify right side
    3,086.64x = 13,098,117.96
  5. Step 5: Solve for x
    x = 13,098,117.96/3,086.64
  6. Step 6: Final answer
    x = 4,243.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.