Home / 1,210.11-1,815.39-552.03

Finding the Fourth Proportional to 1,210.11, 1,815.39 and 552.03

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Solution

The fourth proportional to 1,210.11, 1,815.39 and 552.03 is: 828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.11 : 1,815.39 = 552.03 : x
  2. Step 2: Convert to fraction form
    1,210.11/1,815.39 = 552.03/x
  3. Step 3: Cross multiply
    1,210.11x = 1,815.39 × 552.03
  4. Step 4: Simplify right side
    1,210.11x = 1,002,149.74
  5. Step 5: Solve for x
    x = 1,002,149.74/1,210.11
  6. Step 6: Final answer
    x = 828.15

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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.