Home / 5,244.26-7,860.72-2,647.40

Finding the Fourth Proportional to 5,244.26, 7,860.72 and 2,647.40

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Solution

The fourth proportional to 5,244.26, 7,860.72 and 2,647.40 is: 3,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.26 : 7,860.72 = 2,647.40 : x
  2. Step 2: Convert to fraction form
    5,244.26/7,860.72 = 2,647.40/x
  3. Step 3: Cross multiply
    5,244.26x = 7,860.72 × 2,647.40
  4. Step 4: Simplify right side
    5,244.26x = 20,810,470.13
  5. Step 5: Solve for x
    x = 20,810,470.13/5,244.26
  6. Step 6: Final answer
    x = 3,968.24

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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.