Home / 5,140.54-7,708.11-2,669.32

Finding the Fourth Proportional to 5,140.54, 7,708.11 and 2,669.32

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Solution

The fourth proportional to 5,140.54, 7,708.11 and 2,669.32 is: 4,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.54 : 7,708.11 = 2,669.32 : x
  2. Step 2: Convert to fraction form
    5,140.54/7,708.11 = 2,669.32/x
  3. Step 3: Cross multiply
    5,140.54x = 7,708.11 × 2,669.32
  4. Step 4: Simplify right side
    5,140.54x = 20,575,412.19
  5. Step 5: Solve for x
    x = 20,575,412.19/5,140.54
  6. Step 6: Final answer
    x = 4,002.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.