Home / 1,621.88-2,433.63-799.19

Finding the Fourth Proportional to 1,621.88, 2,433.63 and 799.19

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Solution

The fourth proportional to 1,621.88, 2,433.63 and 799.19 is: 1,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.88 : 2,433.63 = 799.19 : x
  2. Step 2: Convert to fraction form
    1,621.88/2,433.63 = 799.19/x
  3. Step 3: Cross multiply
    1,621.88x = 2,433.63 × 799.19
  4. Step 4: Simplify right side
    1,621.88x = 1,944,932.76
  5. Step 5: Solve for x
    x = 1,944,932.76/1,621.88
  6. Step 6: Final answer
    x = 1,199.18

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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.