Home / 3,615.34-4,989.18-2,123.32

Finding the Fourth Proportional to 3,615.34, 4,989.18 and 2,123.32

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Solution

The fourth proportional to 3,615.34, 4,989.18 and 2,123.32 is: 2,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.34 : 4,989.18 = 2,123.32 : x
  2. Step 2: Convert to fraction form
    3,615.34/4,989.18 = 2,123.32/x
  3. Step 3: Cross multiply
    3,615.34x = 4,989.18 × 2,123.32
  4. Step 4: Simplify right side
    3,615.34x = 10,593,625.68
  5. Step 5: Solve for x
    x = 10,593,625.68/3,615.34
  6. Step 6: Final answer
    x = 2,930.19

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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.