Home / 2,818.17-3,885.43-1,932.39

Finding the Fourth Proportional to 2,818.17, 3,885.43 and 1,932.39

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Solution

The fourth proportional to 2,818.17, 3,885.43 and 1,932.39 is: 2,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.17 : 3,885.43 = 1,932.39 : x
  2. Step 2: Convert to fraction form
    2,818.17/3,885.43 = 1,932.39/x
  3. Step 3: Cross multiply
    2,818.17x = 3,885.43 × 1,932.39
  4. Step 4: Simplify right side
    2,818.17x = 7,508,166.08
  5. Step 5: Solve for x
    x = 7,508,166.08/2,818.17
  6. Step 6: Final answer
    x = 2,664.20

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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.