Home / 1,210.18-1,814.83-516.92

Finding the Fourth Proportional to 1,210.18, 1,814.83 and 516.92

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Solution

The fourth proportional to 1,210.18, 1,814.83 and 516.92 is: 775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.18 : 1,814.83 = 516.92 : x
  2. Step 2: Convert to fraction form
    1,210.18/1,814.83 = 516.92/x
  3. Step 3: Cross multiply
    1,210.18x = 1,814.83 × 516.92
  4. Step 4: Simplify right side
    1,210.18x = 938,125.17
  5. Step 5: Solve for x
    x = 938,125.17/1,210.18
  6. Step 6: Final answer
    x = 775.20

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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.