Home / 2,845.12-3,926.08-1,602.88

Finding the Fourth Proportional to 2,845.12, 3,926.08 and 1,602.88

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Solution

The fourth proportional to 2,845.12, 3,926.08 and 1,602.88 is: 2,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.12 : 3,926.08 = 1,602.88 : x
  2. Step 2: Convert to fraction form
    2,845.12/3,926.08 = 1,602.88/x
  3. Step 3: Cross multiply
    2,845.12x = 3,926.08 × 1,602.88
  4. Step 4: Simplify right side
    2,845.12x = 6,293,035.11
  5. Step 5: Solve for x
    x = 6,293,035.11/2,845.12
  6. Step 6: Final answer
    x = 2,211.87

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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.