Home / 2,087.43-2,879.35-1,342.36

Finding the Fourth Proportional to 2,087.43, 2,879.35 and 1,342.36

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Solution

The fourth proportional to 2,087.43, 2,879.35 and 1,342.36 is: 1,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.43 : 2,879.35 = 1,342.36 : x
  2. Step 2: Convert to fraction form
    2,087.43/2,879.35 = 1,342.36/x
  3. Step 3: Cross multiply
    2,087.43x = 2,879.35 × 1,342.36
  4. Step 4: Simplify right side
    2,087.43x = 3,865,124.27
  5. Step 5: Solve for x
    x = 3,865,124.27/2,087.43
  6. Step 6: Final answer
    x = 1,851.62

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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.