Home / 3,615.44-4,989.14-2,123.52

Finding the Fourth Proportional to 3,615.44, 4,989.14 and 2,123.52

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Solution

The fourth proportional to 3,615.44, 4,989.14 and 2,123.52 is: 2,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.44 : 4,989.14 = 2,123.52 : x
  2. Step 2: Convert to fraction form
    3,615.44/4,989.14 = 2,123.52/x
  3. Step 3: Cross multiply
    3,615.44x = 4,989.14 × 2,123.52
  4. Step 4: Simplify right side
    3,615.44x = 10,594,538.57
  5. Step 5: Solve for x
    x = 10,594,538.57/3,615.44
  6. Step 6: Final answer
    x = 2,930.36

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1.5x scale

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.