Home / 7,115.99-10,675.71-3,219.35

Finding the Fourth Proportional to 7,115.99, 10,675.71 and 3,219.35

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Solution

The fourth proportional to 7,115.99, 10,675.71 and 3,219.35 is: 4,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.99 : 10,675.71 = 3,219.35 : x
  2. Step 2: Convert to fraction form
    7,115.99/10,675.71 = 3,219.35/x
  3. Step 3: Cross multiply
    7,115.99x = 10,675.71 × 3,219.35
  4. Step 4: Simplify right side
    7,115.99x = 34,368,793.61
  5. Step 5: Solve for x
    x = 34,368,793.61/7,115.99
  6. Step 6: Final answer
    x = 4,829.80

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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.