Home / 7,211.08-10,818.78-3,317.68

Finding the Fourth Proportional to 7,211.08, 10,818.78 and 3,317.68

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Solution

The fourth proportional to 7,211.08, 10,818.78 and 3,317.68 is: 4,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.08 : 10,818.78 = 3,317.68 : x
  2. Step 2: Convert to fraction form
    7,211.08/10,818.78 = 3,317.68/x
  3. Step 3: Cross multiply
    7,211.08x = 10,818.78 × 3,317.68
  4. Step 4: Simplify right side
    7,211.08x = 35,893,250.03
  5. Step 5: Solve for x
    x = 35,893,250.03/7,211.08
  6. Step 6: Final answer
    x = 4,977.51

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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.