Home / 3,531.20-5,297.40-1,887.30

Finding the Fourth Proportional to 3,531.20, 5,297.40 and 1,887.30

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Solution

The fourth proportional to 3,531.20, 5,297.40 and 1,887.30 is: 2,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.20 : 5,297.40 = 1,887.30 : x
  2. Step 2: Convert to fraction form
    3,531.20/5,297.40 = 1,887.30/x
  3. Step 3: Cross multiply
    3,531.20x = 5,297.40 × 1,887.30
  4. Step 4: Simplify right side
    3,531.20x = 9,997,783.02
  5. Step 5: Solve for x
    x = 9,997,783.02/3,531.20
  6. Step 6: Final answer
    x = 2,831.27

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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.