Home / 1,208.06-1,812.48-514.70

Finding the Fourth Proportional to 1,208.06, 1,812.48 and 514.70

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Solution

The fourth proportional to 1,208.06, 1,812.48 and 514.70 is: 772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.06 : 1,812.48 = 514.70 : x
  2. Step 2: Convert to fraction form
    1,208.06/1,812.48 = 514.70/x
  3. Step 3: Cross multiply
    1,208.06x = 1,812.48 × 514.70
  4. Step 4: Simplify right side
    1,208.06x = 932,883.46
  5. Step 5: Solve for x
    x = 932,883.46/1,208.06
  6. Step 6: Final answer
    x = 772.22

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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.