Home / 1,950.11-2,687.99-1,202.45

Finding the Fourth Proportional to 1,950.11, 2,687.99 and 1,202.45

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Solution

The fourth proportional to 1,950.11, 2,687.99 and 1,202.45 is: 1,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.11 : 2,687.99 = 1,202.45 : x
  2. Step 2: Convert to fraction form
    1,950.11/2,687.99 = 1,202.45/x
  3. Step 3: Cross multiply
    1,950.11x = 2,687.99 × 1,202.45
  4. Step 4: Simplify right side
    1,950.11x = 3,232,154.12
  5. Step 5: Solve for x
    x = 3,232,154.12/1,950.11
  6. Step 6: Final answer
    x = 1,657.42

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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.