Home / 7,088.20-10,634.69-3,138.92

Finding the Fourth Proportional to 7,088.20, 10,634.69 and 3,138.92

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Solution

The fourth proportional to 7,088.20, 10,634.69 and 3,138.92 is: 4,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.20 : 10,634.69 = 3,138.92 : x
  2. Step 2: Convert to fraction form
    7,088.20/10,634.69 = 3,138.92/x
  3. Step 3: Cross multiply
    7,088.20x = 10,634.69 × 3,138.92
  4. Step 4: Simplify right side
    7,088.20x = 33,381,423.92
  5. Step 5: Solve for x
    x = 33,381,423.92/7,088.20
  6. Step 6: Final answer
    x = 4,709.44

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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.