Home / 3,619.84-5,429.76-1,887.52

Finding the Fourth Proportional to 3,619.84, 5,429.76 and 1,887.52

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Solution

The fourth proportional to 3,619.84, 5,429.76 and 1,887.52 is: 2,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.84 : 5,429.76 = 1,887.52 : x
  2. Step 2: Convert to fraction form
    3,619.84/5,429.76 = 1,887.52/x
  3. Step 3: Cross multiply
    3,619.84x = 5,429.76 × 1,887.52
  4. Step 4: Simplify right side
    3,619.84x = 10,248,780.60
  5. Step 5: Solve for x
    x = 10,248,780.60/3,619.84
  6. Step 6: Final answer
    x = 2,831.28

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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.