Home / 1,480.23-2,042.73-808.07

Finding the Fourth Proportional to 1,480.23, 2,042.73 and 808.07

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Solution

The fourth proportional to 1,480.23, 2,042.73 and 808.07 is: 1,115.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.23 : 2,042.73 = 808.07 : x
  2. Step 2: Convert to fraction form
    1,480.23/2,042.73 = 808.07/x
  3. Step 3: Cross multiply
    1,480.23x = 2,042.73 × 808.07
  4. Step 4: Simplify right side
    1,480.23x = 1,650,658.62
  5. Step 5: Solve for x
    x = 1,650,658.62/1,480.23
  6. Step 6: Final answer
    x = 1,115.14

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1.5x scale

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.