Home / 1,471.26-2,030.35-808.10

Finding the Fourth Proportional to 1,471.26, 2,030.35 and 808.10

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Solution

The fourth proportional to 1,471.26, 2,030.35 and 808.10 is: 1,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.26 : 2,030.35 = 808.10 : x
  2. Step 2: Convert to fraction form
    1,471.26/2,030.35 = 808.10/x
  3. Step 3: Cross multiply
    1,471.26x = 2,030.35 × 808.10
  4. Step 4: Simplify right side
    1,471.26x = 1,640,713.66
  5. Step 5: Solve for x
    x = 1,640,713.66/1,471.26
  6. Step 6: Final answer
    x = 1,115.18

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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.