Home / 6,399.81-9,597.20-3,111.93

Finding the Fourth Proportional to 6,399.81, 9,597.20 and 3,111.93

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Solution

The fourth proportional to 6,399.81, 9,597.20 and 3,111.93 is: 4,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.81 : 9,597.20 = 3,111.93 : x
  2. Step 2: Convert to fraction form
    6,399.81/9,597.20 = 3,111.93/x
  3. Step 3: Cross multiply
    6,399.81x = 9,597.20 × 3,111.93
  4. Step 4: Simplify right side
    6,399.81x = 29,865,799.04
  5. Step 5: Solve for x
    x = 29,865,799.04/6,399.81
  6. Step 6: Final answer
    x = 4,666.67

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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.