Home / 3,896.55-5,377.19-2,403.87

Finding the Fourth Proportional to 3,896.55, 5,377.19 and 2,403.87

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Solution

The fourth proportional to 3,896.55, 5,377.19 and 2,403.87 is: 3,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.55 : 5,377.19 = 2,403.87 : x
  2. Step 2: Convert to fraction form
    3,896.55/5,377.19 = 2,403.87/x
  3. Step 3: Cross multiply
    3,896.55x = 5,377.19 × 2,403.87
  4. Step 4: Simplify right side
    3,896.55x = 12,926,038.84
  5. Step 5: Solve for x
    x = 12,926,038.84/3,896.55
  6. Step 6: Final answer
    x = 3,317.31

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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.