Home / 2,160.09-2,981.68-1,871.37

Finding the Fourth Proportional to 2,160.09, 2,981.68 and 1,871.37

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Solution

The fourth proportional to 2,160.09, 2,981.68 and 1,871.37 is: 2,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.09 : 2,981.68 = 1,871.37 : x
  2. Step 2: Convert to fraction form
    2,160.09/2,981.68 = 1,871.37/x
  3. Step 3: Cross multiply
    2,160.09x = 2,981.68 × 1,871.37
  4. Step 4: Simplify right side
    2,160.09x = 5,579,821.82
  5. Step 5: Solve for x
    x = 5,579,821.82/2,160.09
  6. Step 6: Final answer
    x = 2,583.14

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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.