Home / 2,911.26-4,366.86-720.01

Finding the Fourth Proportional to 2,911.26, 4,366.86 and 720.01

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Solution

The fourth proportional to 2,911.26, 4,366.86 and 720.01 is: 1,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.26 : 4,366.86 = 720.01 : x
  2. Step 2: Convert to fraction form
    2,911.26/4,366.86 = 720.01/x
  3. Step 3: Cross multiply
    2,911.26x = 4,366.86 × 720.01
  4. Step 4: Simplify right side
    2,911.26x = 3,144,182.87
  5. Step 5: Solve for x
    x = 3,144,182.87/2,911.26
  6. Step 6: Final answer
    x = 1,080.01

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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.