Home / 7,770.28-11,640.84-4,076.08

Finding the Fourth Proportional to 7,770.28, 11,640.84 and 4,076.08

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Solution

The fourth proportional to 7,770.28, 11,640.84 and 4,076.08 is: 6,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.28 : 11,640.84 = 4,076.08 : x
  2. Step 2: Convert to fraction form
    7,770.28/11,640.84 = 4,076.08/x
  3. Step 3: Cross multiply
    7,770.28x = 11,640.84 × 4,076.08
  4. Step 4: Simplify right side
    7,770.28x = 47,448,995.11
  5. Step 5: Solve for x
    x = 47,448,995.11/7,770.28
  6. Step 6: Final answer
    x = 6,106.47

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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.