Home / 1,621.52-2,434.08-1,206.56

Finding the Fourth Proportional to 1,621.52, 2,434.08 and 1,206.56

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Solution

The fourth proportional to 1,621.52, 2,434.08 and 1,206.56 is: 1,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.52 : 2,434.08 = 1,206.56 : x
  2. Step 2: Convert to fraction form
    1,621.52/2,434.08 = 1,206.56/x
  3. Step 3: Cross multiply
    1,621.52x = 2,434.08 × 1,206.56
  4. Step 4: Simplify right side
    1,621.52x = 2,936,863.56
  5. Step 5: Solve for x
    x = 2,936,863.56/1,621.52
  6. Step 6: Final answer
    x = 1,811.18

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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.