Home / 2,172.70-3,260.42-1,250.07

Finding the Fourth Proportional to 2,172.70, 3,260.42 and 1,250.07

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Solution

The fourth proportional to 2,172.70, 3,260.42 and 1,250.07 is: 1,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.70 : 3,260.42 = 1,250.07 : x
  2. Step 2: Convert to fraction form
    2,172.70/3,260.42 = 1,250.07/x
  3. Step 3: Cross multiply
    2,172.70x = 3,260.42 × 1,250.07
  4. Step 4: Simplify right side
    2,172.70x = 4,075,753.23
  5. Step 5: Solve for x
    x = 4,075,753.23/2,172.70
  6. Step 6: Final answer
    x = 1,875.89

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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.