Home / 2,782.34-4,187.47-2,092.58

Finding the Fourth Proportional to 2,782.34, 4,187.47 and 2,092.58

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Solution

The fourth proportional to 2,782.34, 4,187.47 and 2,092.58 is: 3,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.34 : 4,187.47 = 2,092.58 : x
  2. Step 2: Convert to fraction form
    2,782.34/4,187.47 = 2,092.58/x
  3. Step 3: Cross multiply
    2,782.34x = 4,187.47 × 2,092.58
  4. Step 4: Simplify right side
    2,782.34x = 8,762,615.97
  5. Step 5: Solve for x
    x = 8,762,615.97/2,782.34
  6. Step 6: Final answer
    x = 3,149.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.