Home / 2,528.11-3,492.12-1,945.81

Finding the Fourth Proportional to 2,528.11, 3,492.12 and 1,945.81

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Solution

The fourth proportional to 2,528.11, 3,492.12 and 1,945.81 is: 2,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.11 : 3,492.12 = 1,945.81 : x
  2. Step 2: Convert to fraction form
    2,528.11/3,492.12 = 1,945.81/x
  3. Step 3: Cross multiply
    2,528.11x = 3,492.12 × 1,945.81
  4. Step 4: Simplify right side
    2,528.11x = 6,795,002.02
  5. Step 5: Solve for x
    x = 6,795,002.02/2,528.11
  6. Step 6: Final answer
    x = 2,687.78

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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.