Home / 2,845.13-3,925.80-1,665.95

Finding the Fourth Proportional to 2,845.13, 3,925.80 and 1,665.95

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Solution

The fourth proportional to 2,845.13, 3,925.80 and 1,665.95 is: 2,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.13 : 3,925.80 = 1,665.95 : x
  2. Step 2: Convert to fraction form
    2,845.13/3,925.80 = 1,665.95/x
  3. Step 3: Cross multiply
    2,845.13x = 3,925.80 × 1,665.95
  4. Step 4: Simplify right side
    2,845.13x = 6,540,166.88
  5. Step 5: Solve for x
    x = 6,540,166.88/2,845.13
  6. Step 6: Final answer
    x = 2,298.73

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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.