Home / 3,614.90-4,985.96-2,123.11

Finding the Fourth Proportional to 3,614.90, 4,985.96 and 2,123.11

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Solution

The fourth proportional to 3,614.90, 4,985.96 and 2,123.11 is: 2,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.90 : 4,985.96 = 2,123.11 : x
  2. Step 2: Convert to fraction form
    3,614.90/4,985.96 = 2,123.11/x
  3. Step 3: Cross multiply
    3,614.90x = 4,985.96 × 2,123.11
  4. Step 4: Simplify right side
    3,614.90x = 10,585,737.15
  5. Step 5: Solve for x
    x = 10,585,737.15/3,614.90
  6. Step 6: Final answer
    x = 2,928.37

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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.