Home / 7,141.90-10,716.66-2,984.74

Finding the Fourth Proportional to 7,141.90, 10,716.66 and 2,984.74

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Solution

The fourth proportional to 7,141.90, 10,716.66 and 2,984.74 is: 4,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.90 : 10,716.66 = 2,984.74 : x
  2. Step 2: Convert to fraction form
    7,141.90/10,716.66 = 2,984.74/x
  3. Step 3: Cross multiply
    7,141.90x = 10,716.66 × 2,984.74
  4. Step 4: Simplify right side
    7,141.90x = 31,986,443.77
  5. Step 5: Solve for x
    x = 31,986,443.77/7,141.90
  6. Step 6: Final answer
    x = 4,478.70

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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.