Home / 5,292.86-7,938.02-2,172.03

Finding the Fourth Proportional to 5,292.86, 7,938.02 and 2,172.03

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Solution

The fourth proportional to 5,292.86, 7,938.02 and 2,172.03 is: 3,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.86 : 7,938.02 = 2,172.03 : x
  2. Step 2: Convert to fraction form
    5,292.86/7,938.02 = 2,172.03/x
  3. Step 3: Cross multiply
    5,292.86x = 7,938.02 × 2,172.03
  4. Step 4: Simplify right side
    5,292.86x = 17,241,617.58
  5. Step 5: Solve for x
    x = 17,241,617.58/5,292.86
  6. Step 6: Final answer
    x = 3,257.52

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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.