Home / 7,144.38-10,716.39-1,950.30

Finding the Fourth Proportional to 7,144.38, 10,716.39 and 1,950.30

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Solution

The fourth proportional to 7,144.38, 10,716.39 and 1,950.30 is: 2,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.38 : 10,716.39 = 1,950.30 : x
  2. Step 2: Convert to fraction form
    7,144.38/10,716.39 = 1,950.30/x
  3. Step 3: Cross multiply
    7,144.38x = 10,716.39 × 1,950.30
  4. Step 4: Simplify right side
    7,144.38x = 20,900,175.42
  5. Step 5: Solve for x
    x = 20,900,175.42/7,144.38
  6. Step 6: Final answer
    x = 2,925.40

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Half scale
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Double scale
Find fourth proportional to 7,145.38, 10,717.89 and 1,951.30
Similar ratio
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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.