Home / 2,172.04-3,257.16-710.80

Finding the Fourth Proportional to 2,172.04, 3,257.16 and 710.80

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Solution

The fourth proportional to 2,172.04, 3,257.16 and 710.80 is: 1,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.04 : 3,257.16 = 710.80 : x
  2. Step 2: Convert to fraction form
    2,172.04/3,257.16 = 710.80/x
  3. Step 3: Cross multiply
    2,172.04x = 3,257.16 × 710.80
  4. Step 4: Simplify right side
    2,172.04x = 2,315,189.33
  5. Step 5: Solve for x
    x = 2,315,189.33/2,172.04
  6. Step 6: Final answer
    x = 1,065.91

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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.