Home / 4,140.32-5,719.92-3,090.56

Finding the Fourth Proportional to 4,140.32, 5,719.92 and 3,090.56

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Solution

The fourth proportional to 4,140.32, 5,719.92 and 3,090.56 is: 4,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.32 : 5,719.92 = 3,090.56 : x
  2. Step 2: Convert to fraction form
    4,140.32/5,719.92 = 3,090.56/x
  3. Step 3: Cross multiply
    4,140.32x = 5,719.92 × 3,090.56
  4. Step 4: Simplify right side
    4,140.32x = 17,677,755.96
  5. Step 5: Solve for x
    x = 17,677,755.96/4,140.32
  6. Step 6: Final answer
    x = 4,269.66

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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.