Home / 7,214.76-9,956.52-3,984.57

Finding the Fourth Proportional to 7,214.76, 9,956.52 and 3,984.57

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Solution

The fourth proportional to 7,214.76, 9,956.52 and 3,984.57 is: 5,498.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.76 : 9,956.52 = 3,984.57 : x
  2. Step 2: Convert to fraction form
    7,214.76/9,956.52 = 3,984.57/x
  3. Step 3: Cross multiply
    7,214.76x = 9,956.52 × 3,984.57
  4. Step 4: Simplify right side
    7,214.76x = 39,672,465.84
  5. Step 5: Solve for x
    x = 39,672,465.84/7,214.76
  6. Step 6: Final answer
    x = 5,498.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.