Home / 1,621.41-2,432.39-799.77

Finding the Fourth Proportional to 1,621.41, 2,432.39 and 799.77

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Solution

The fourth proportional to 1,621.41, 2,432.39 and 799.77 is: 1,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.41 : 2,432.39 = 799.77 : x
  2. Step 2: Convert to fraction form
    1,621.41/2,432.39 = 799.77/x
  3. Step 3: Cross multiply
    1,621.41x = 2,432.39 × 799.77
  4. Step 4: Simplify right side
    1,621.41x = 1,945,348.55
  5. Step 5: Solve for x
    x = 1,945,348.55/1,621.41
  6. Step 6: Final answer
    x = 1,199.79

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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.