Home / 7,143.39-10,716.08-2,982.44

Finding the Fourth Proportional to 7,143.39, 10,716.08 and 2,982.44

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Solution

The fourth proportional to 7,143.39, 10,716.08 and 2,982.44 is: 4,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.39 : 10,716.08 = 2,982.44 : x
  2. Step 2: Convert to fraction form
    7,143.39/10,716.08 = 2,982.44/x
  3. Step 3: Cross multiply
    7,143.39x = 10,716.08 × 2,982.44
  4. Step 4: Simplify right side
    7,143.39x = 31,960,077.51
  5. Step 5: Solve for x
    x = 31,960,077.51/7,143.39
  6. Step 6: Final answer
    x = 4,474.08

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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.