Home / 1,074.66-1,478.73-1,042.56

Finding the Fourth Proportional to 1,074.66, 1,478.73 and 1,042.56

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Solution

The fourth proportional to 1,074.66, 1,478.73 and 1,042.56 is: 1,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.66 : 1,478.73 = 1,042.56 : x
  2. Step 2: Convert to fraction form
    1,074.66/1,478.73 = 1,042.56/x
  3. Step 3: Cross multiply
    1,074.66x = 1,478.73 × 1,042.56
  4. Step 4: Simplify right side
    1,074.66x = 1,541,664.75
  5. Step 5: Solve for x
    x = 1,541,664.75/1,074.66
  6. Step 6: Final answer
    x = 1,434.56

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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.