Home / 7,214.80-10,826.28-3,928.12

Finding the Fourth Proportional to 7,214.80, 10,826.28 and 3,928.12

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Solution

The fourth proportional to 7,214.80, 10,826.28 and 3,928.12 is: 5,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.80 : 10,826.28 = 3,928.12 : x
  2. Step 2: Convert to fraction form
    7,214.80/10,826.28 = 3,928.12/x
  3. Step 3: Cross multiply
    7,214.80x = 10,826.28 × 3,928.12
  4. Step 4: Simplify right side
    7,214.80x = 42,526,926.99
  5. Step 5: Solve for x
    x = 42,526,926.99/7,214.80
  6. Step 6: Final answer
    x = 5,894.40

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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.