Home / 2,720.63-4,082.70-1,423.01

Finding the Fourth Proportional to 2,720.63, 4,082.70 and 1,423.01

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Solution

The fourth proportional to 2,720.63, 4,082.70 and 1,423.01 is: 2,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.63 : 4,082.70 = 1,423.01 : x
  2. Step 2: Convert to fraction form
    2,720.63/4,082.70 = 1,423.01/x
  3. Step 3: Cross multiply
    2,720.63x = 4,082.70 × 1,423.01
  4. Step 4: Simplify right side
    2,720.63x = 5,809,722.93
  5. Step 5: Solve for x
    x = 5,809,722.93/2,720.63
  6. Step 6: Final answer
    x = 2,135.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.