Home / 2,172.50-2,987.73-1,725.14

Finding the Fourth Proportional to 2,172.50, 2,987.73 and 1,725.14

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Solution

The fourth proportional to 2,172.50, 2,987.73 and 1,725.14 is: 2,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.50 : 2,987.73 = 1,725.14 : x
  2. Step 2: Convert to fraction form
    2,172.50/2,987.73 = 1,725.14/x
  3. Step 3: Cross multiply
    2,172.50x = 2,987.73 × 1,725.14
  4. Step 4: Simplify right side
    2,172.50x = 5,154,252.53
  5. Step 5: Solve for x
    x = 5,154,252.53/2,172.50
  6. Step 6: Final answer
    x = 2,372.50

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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.