Home / 6,885.20-9,502.37-4,090.70

Finding the Fourth Proportional to 6,885.20, 9,502.37 and 4,090.70

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Solution

The fourth proportional to 6,885.20, 9,502.37 and 4,090.70 is: 5,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.20 : 9,502.37 = 4,090.70 : x
  2. Step 2: Convert to fraction form
    6,885.20/9,502.37 = 4,090.70/x
  3. Step 3: Cross multiply
    6,885.20x = 9,502.37 × 4,090.70
  4. Step 4: Simplify right side
    6,885.20x = 38,871,276.99
  5. Step 5: Solve for x
    x = 38,871,276.99/6,885.20
  6. Step 6: Final answer
    x = 5,645.63

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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.