Home / 7,765.20-10,716.03-4,228.34

Finding the Fourth Proportional to 7,765.20, 10,716.03 and 4,228.34

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Solution

The fourth proportional to 7,765.20, 10,716.03 and 4,228.34 is: 5,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.20 : 10,716.03 = 4,228.34 : x
  2. Step 2: Convert to fraction form
    7,765.20/10,716.03 = 4,228.34/x
  3. Step 3: Cross multiply
    7,765.20x = 10,716.03 × 4,228.34
  4. Step 4: Simplify right side
    7,765.20x = 45,310,964.71
  5. Step 5: Solve for x
    x = 45,310,964.71/7,765.20
  6. Step 6: Final answer
    x = 5,835.13

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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.