Home / 6,885.20-9,501.40-3,900.96

Finding the Fourth Proportional to 6,885.20, 9,501.40 and 3,900.96

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Solution

The fourth proportional to 6,885.20, 9,501.40 and 3,900.96 is: 5,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.20 : 9,501.40 = 3,900.96 : x
  2. Step 2: Convert to fraction form
    6,885.20/9,501.40 = 3,900.96/x
  3. Step 3: Cross multiply
    6,885.20x = 9,501.40 × 3,900.96
  4. Step 4: Simplify right side
    6,885.20x = 37,064,586.22
  5. Step 5: Solve for x
    x = 37,064,586.22/6,885.20
  6. Step 6: Final answer
    x = 5,383.22

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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.