Home / 7,729.08-10,662.20-4,891.67

Finding the Fourth Proportional to 7,729.08, 10,662.20 and 4,891.67

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Solution

The fourth proportional to 7,729.08, 10,662.20 and 4,891.67 is: 6,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.08 : 10,662.20 = 4,891.67 : x
  2. Step 2: Convert to fraction form
    7,729.08/10,662.20 = 4,891.67/x
  3. Step 3: Cross multiply
    7,729.08x = 10,662.20 × 4,891.67
  4. Step 4: Simplify right side
    7,729.08x = 52,155,963.87
  5. Step 5: Solve for x
    x = 52,155,963.87/7,729.08
  6. Step 6: Final answer
    x = 6,748.02

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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.