Home / 2,845.31-3,926.61-1,586.30

Finding the Fourth Proportional to 2,845.31, 3,926.61 and 1,586.30

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Solution

The fourth proportional to 2,845.31, 3,926.61 and 1,586.30 is: 2,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.31 : 3,926.61 = 1,586.30 : x
  2. Step 2: Convert to fraction form
    2,845.31/3,926.61 = 1,586.30/x
  3. Step 3: Cross multiply
    2,845.31x = 3,926.61 × 1,586.30
  4. Step 4: Simplify right side
    2,845.31x = 6,228,761.81
  5. Step 5: Solve for x
    x = 6,228,761.81/2,845.31
  6. Step 6: Final answer
    x = 2,189.14

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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.