Home / 3,619.14-5,430.15-2,887.62

Finding the Fourth Proportional to 3,619.14, 5,430.15 and 2,887.62

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Solution

The fourth proportional to 3,619.14, 5,430.15 and 2,887.62 is: 4,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.14 : 5,430.15 = 2,887.62 : x
  2. Step 2: Convert to fraction form
    3,619.14/5,430.15 = 2,887.62/x
  3. Step 3: Cross multiply
    3,619.14x = 5,430.15 × 2,887.62
  4. Step 4: Simplify right side
    3,619.14x = 15,680,209.74
  5. Step 5: Solve for x
    x = 15,680,209.74/3,619.14
  6. Step 6: Final answer
    x = 4,332.58

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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.