Home / 1,081.23-1,621.63-496.07

Finding the Fourth Proportional to 1,081.23, 1,621.63 and 496.07

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Solution

The fourth proportional to 1,081.23, 1,621.63 and 496.07 is: 744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.23 : 1,621.63 = 496.07 : x
  2. Step 2: Convert to fraction form
    1,081.23/1,621.63 = 496.07/x
  3. Step 3: Cross multiply
    1,081.23x = 1,621.63 × 496.07
  4. Step 4: Simplify right side
    1,081.23x = 804,441.99
  5. Step 5: Solve for x
    x = 804,441.99/1,081.23
  6. Step 6: Final answer
    x = 744.01

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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.