Home / 3,720.63-5,579.58-2,487.71

Finding the Fourth Proportional to 3,720.63, 5,579.58 and 2,487.71

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Solution

The fourth proportional to 3,720.63, 5,579.58 and 2,487.71 is: 3,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.63 : 5,579.58 = 2,487.71 : x
  2. Step 2: Convert to fraction form
    3,720.63/5,579.58 = 2,487.71/x
  3. Step 3: Cross multiply
    3,720.63x = 5,579.58 × 2,487.71
  4. Step 4: Simplify right side
    3,720.63x = 13,880,400.24
  5. Step 5: Solve for x
    x = 13,880,400.24/3,720.63
  6. Step 6: Final answer
    x = 3,730.65

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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.