Home / 6,525.40-9,765.70-3,930.20

Finding the Fourth Proportional to 6,525.40, 9,765.70 and 3,930.20

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Solution

The fourth proportional to 6,525.40, 9,765.70 and 3,930.20 is: 5,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,525.40 : 9,765.70 = 3,930.20 : x
  2. Step 2: Convert to fraction form
    6,525.40/9,765.70 = 3,930.20/x
  3. Step 3: Cross multiply
    6,525.40x = 9,765.70 × 3,930.20
  4. Step 4: Simplify right side
    6,525.40x = 38,381,154.14
  5. Step 5: Solve for x
    x = 38,381,154.14/6,525.40
  6. Step 6: Final answer
    x = 5,881.81

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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.