Home / 7,145.40-10,716.89-1,950.06

Finding the Fourth Proportional to 7,145.40, 10,716.89 and 1,950.06

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Solution

The fourth proportional to 7,145.40, 10,716.89 and 1,950.06 is: 2,924.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.40 : 10,716.89 = 1,950.06 : x
  2. Step 2: Convert to fraction form
    7,145.40/10,716.89 = 1,950.06/x
  3. Step 3: Cross multiply
    7,145.40x = 10,716.89 × 1,950.06
  4. Step 4: Simplify right side
    7,145.40x = 20,898,578.51
  5. Step 5: Solve for x
    x = 20,898,578.51/7,145.40
  6. Step 6: Final answer
    x = 2,924.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.