Home / 3,720.16-5,579.52-1,411.20

Finding the Fourth Proportional to 3,720.16, 5,579.52 and 1,411.20

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Solution

The fourth proportional to 3,720.16, 5,579.52 and 1,411.20 is: 2,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.16 : 5,579.52 = 1,411.20 : x
  2. Step 2: Convert to fraction form
    3,720.16/5,579.52 = 1,411.20/x
  3. Step 3: Cross multiply
    3,720.16x = 5,579.52 × 1,411.20
  4. Step 4: Simplify right side
    3,720.16x = 7,873,818.62
  5. Step 5: Solve for x
    x = 7,873,818.62/3,720.16
  6. Step 6: Final answer
    x = 2,116.53

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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.