Home / 2,135.02-3,200.33-818.41

Finding the Fourth Proportional to 2,135.02, 3,200.33 and 818.41

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Solution

The fourth proportional to 2,135.02, 3,200.33 and 818.41 is: 1,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.02 : 3,200.33 = 818.41 : x
  2. Step 2: Convert to fraction form
    2,135.02/3,200.33 = 818.41/x
  3. Step 3: Cross multiply
    2,135.02x = 3,200.33 × 818.41
  4. Step 4: Simplify right side
    2,135.02x = 2,619,182.08
  5. Step 5: Solve for x
    x = 2,619,182.08/2,135.02
  6. Step 6: Final answer
    x = 1,226.77

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1.5x scale

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.