Home / 2,135.02-3,200.67-837.40

Finding the Fourth Proportional to 2,135.02, 3,200.67 and 837.40

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Solution

The fourth proportional to 2,135.02, 3,200.67 and 837.40 is: 1,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.02 : 3,200.67 = 837.40 : x
  2. Step 2: Convert to fraction form
    2,135.02/3,200.67 = 837.40/x
  3. Step 3: Cross multiply
    2,135.02x = 3,200.67 × 837.40
  4. Step 4: Simplify right side
    2,135.02x = 2,680,241.06
  5. Step 5: Solve for x
    x = 2,680,241.06/2,135.02
  6. Step 6: Final answer
    x = 1,255.37

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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.