Home / 2,451.56-3,677.27-720.18

Finding the Fourth Proportional to 2,451.56, 3,677.27 and 720.18

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Solution

The fourth proportional to 2,451.56, 3,677.27 and 720.18 is: 1,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.56 : 3,677.27 = 720.18 : x
  2. Step 2: Convert to fraction form
    2,451.56/3,677.27 = 720.18/x
  3. Step 3: Cross multiply
    2,451.56x = 3,677.27 × 720.18
  4. Step 4: Simplify right side
    2,451.56x = 2,648,292.71
  5. Step 5: Solve for x
    x = 2,648,292.71/2,451.56
  6. Step 6: Final answer
    x = 1,080.25

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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.