Home / 2,845.45-3,925.21-1,959.71

Finding the Fourth Proportional to 2,845.45, 3,925.21 and 1,959.71

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Solution

The fourth proportional to 2,845.45, 3,925.21 and 1,959.71 is: 2,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.45 : 3,925.21 = 1,959.71 : x
  2. Step 2: Convert to fraction form
    2,845.45/3,925.21 = 1,959.71/x
  3. Step 3: Cross multiply
    2,845.45x = 3,925.21 × 1,959.71
  4. Step 4: Simplify right side
    2,845.45x = 7,692,273.29
  5. Step 5: Solve for x
    x = 7,692,273.29/2,845.45
  6. Step 6: Final answer
    x = 2,703.36

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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.