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Finding the Fourth Proportional to 7,144.61, 10,716.71 and 1,950.48

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Solution

The fourth proportional to 7,144.61, 10,716.71 and 1,950.48 is: 2,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.61 : 10,716.71 = 1,950.48 : x
  2. Step 2: Convert to fraction form
    7,144.61/10,716.71 = 1,950.48/x
  3. Step 3: Cross multiply
    7,144.61x = 10,716.71 × 1,950.48
  4. Step 4: Simplify right side
    7,144.61x = 20,902,718.77
  5. Step 5: Solve for x
    x = 20,902,718.77/7,144.61
  6. Step 6: Final answer
    x = 2,925.66

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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.