Home / 3,712.50-5,123.25-2,140.63

Finding the Fourth Proportional to 3,712.50, 5,123.25 and 2,140.63

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Solution

The fourth proportional to 3,712.50, 5,123.25 and 2,140.63 is: 2,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.50 : 5,123.25 = 2,140.63 : x
  2. Step 2: Convert to fraction form
    3,712.50/5,123.25 = 2,140.63/x
  3. Step 3: Cross multiply
    3,712.50x = 5,123.25 × 2,140.63
  4. Step 4: Simplify right side
    3,712.50x = 10,966,969.84
  5. Step 5: Solve for x
    x = 10,966,969.84/3,712.50
  6. Step 6: Final answer
    x = 2,954.07

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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.