Home / 7,771.05-11,660.02-4,072.40

Finding the Fourth Proportional to 7,771.05, 11,660.02 and 4,072.40

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Solution

The fourth proportional to 7,771.05, 11,660.02 and 4,072.40 is: 6,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.05 : 11,660.02 = 4,072.40 : x
  2. Step 2: Convert to fraction form
    7,771.05/11,660.02 = 4,072.40/x
  3. Step 3: Cross multiply
    7,771.05x = 11,660.02 × 4,072.40
  4. Step 4: Simplify right side
    7,771.05x = 47,484,311.14
  5. Step 5: Solve for x
    x = 47,484,311.14/7,771.05
  6. Step 6: Final answer
    x = 6,110.41

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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.