Home / 1,081.27-1,621.95-464.50

Finding the Fourth Proportional to 1,081.27, 1,621.95 and 464.50

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Solution

The fourth proportional to 1,081.27, 1,621.95 and 464.50 is: 696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.27 : 1,621.95 = 464.50 : x
  2. Step 2: Convert to fraction form
    1,081.27/1,621.95 = 464.50/x
  3. Step 3: Cross multiply
    1,081.27x = 1,621.95 × 464.50
  4. Step 4: Simplify right side
    1,081.27x = 753,395.78
  5. Step 5: Solve for x
    x = 753,395.78/1,081.27
  6. Step 6: Final answer
    x = 696.77

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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.