Home / 5,140.88-7,091.57-3,459.32

Finding the Fourth Proportional to 5,140.88, 7,091.57 and 3,459.32

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Solution

The fourth proportional to 5,140.88, 7,091.57 and 3,459.32 is: 4,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.88 : 7,091.57 = 3,459.32 : x
  2. Step 2: Convert to fraction form
    5,140.88/7,091.57 = 3,459.32/x
  3. Step 3: Cross multiply
    5,140.88x = 7,091.57 × 3,459.32
  4. Step 4: Simplify right side
    5,140.88x = 24,531,957.18
  5. Step 5: Solve for x
    x = 24,531,957.18/5,140.88
  6. Step 6: Final answer
    x = 4,771.94

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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.