Home / 5,318.20-7,331.51-3,741.40

Finding the Fourth Proportional to 5,318.20, 7,331.51 and 3,741.40

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Solution

The fourth proportional to 5,318.20, 7,331.51 and 3,741.40 is: 5,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.20 : 7,331.51 = 3,741.40 : x
  2. Step 2: Convert to fraction form
    5,318.20/7,331.51 = 3,741.40/x
  3. Step 3: Cross multiply
    5,318.20x = 7,331.51 × 3,741.40
  4. Step 4: Simplify right side
    5,318.20x = 27,430,111.51
  5. Step 5: Solve for x
    x = 27,430,111.51/5,318.20
  6. Step 6: Final answer
    x = 5,157.78

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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.