Home / 2,720.29-4,073.11-1,419.01

Finding the Fourth Proportional to 2,720.29, 4,073.11 and 1,419.01

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Solution

The fourth proportional to 2,720.29, 4,073.11 and 1,419.01 is: 2,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.29 : 4,073.11 = 1,419.01 : x
  2. Step 2: Convert to fraction form
    2,720.29/4,073.11 = 1,419.01/x
  3. Step 3: Cross multiply
    2,720.29x = 4,073.11 × 1,419.01
  4. Step 4: Simplify right side
    2,720.29x = 5,779,783.82
  5. Step 5: Solve for x
    x = 5,779,783.82/2,720.29
  6. Step 6: Final answer
    x = 2,124.69

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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.