Home / 7,770.28-10,725.06-4,786.60

Finding the Fourth Proportional to 7,770.28, 10,725.06 and 4,786.60

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Solution

The fourth proportional to 7,770.28, 10,725.06 and 4,786.60 is: 6,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.28 : 10,725.06 = 4,786.60 : x
  2. Step 2: Convert to fraction form
    7,770.28/10,725.06 = 4,786.60/x
  3. Step 3: Cross multiply
    7,770.28x = 10,725.06 × 4,786.60
  4. Step 4: Simplify right side
    7,770.28x = 51,336,572.20
  5. Step 5: Solve for x
    x = 51,336,572.20/7,770.28
  6. Step 6: Final answer
    x = 6,606.79

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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.