Home / 1,969.30-2,715.38-1,471.10

Finding the Fourth Proportional to 1,969.30, 2,715.38 and 1,471.10

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Solution

The fourth proportional to 1,969.30, 2,715.38 and 1,471.10 is: 2,028.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.30 : 2,715.38 = 1,471.10 : x
  2. Step 2: Convert to fraction form
    1,969.30/2,715.38 = 1,471.10/x
  3. Step 3: Cross multiply
    1,969.30x = 2,715.38 × 1,471.10
  4. Step 4: Simplify right side
    1,969.30x = 3,994,595.52
  5. Step 5: Solve for x
    x = 3,994,595.52/1,969.30
  6. Step 6: Final answer
    x = 2,028.43

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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.