Home / 1,480.17-2,042.66-817.05

Finding the Fourth Proportional to 1,480.17, 2,042.66 and 817.05

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Solution

The fourth proportional to 1,480.17, 2,042.66 and 817.05 is: 1,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.17 : 2,042.66 = 817.05 : x
  2. Step 2: Convert to fraction form
    1,480.17/2,042.66 = 817.05/x
  3. Step 3: Cross multiply
    1,480.17x = 2,042.66 × 817.05
  4. Step 4: Simplify right side
    1,480.17x = 1,668,955.35
  5. Step 5: Solve for x
    x = 1,668,955.35/1,480.17
  6. Step 6: Final answer
    x = 1,127.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.