Home / 1,081.95-1,623.77-433.11

Finding the Fourth Proportional to 1,081.95, 1,623.77 and 433.11

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Solution

The fourth proportional to 1,081.95, 1,623.77 and 433.11 is: 650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.95 : 1,623.77 = 433.11 : x
  2. Step 2: Convert to fraction form
    1,081.95/1,623.77 = 433.11/x
  3. Step 3: Cross multiply
    1,081.95x = 1,623.77 × 433.11
  4. Step 4: Simplify right side
    1,081.95x = 703,268.86
  5. Step 5: Solve for x
    x = 703,268.86/1,081.95
  6. Step 6: Final answer
    x = 650.00

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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.