Home / 3,813.47-5,260.71-2,398.87

Finding the Fourth Proportional to 3,813.47, 5,260.71 and 2,398.87

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Solution

The fourth proportional to 3,813.47, 5,260.71 and 2,398.87 is: 3,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.47 : 5,260.71 = 2,398.87 : x
  2. Step 2: Convert to fraction form
    3,813.47/5,260.71 = 2,398.87/x
  3. Step 3: Cross multiply
    3,813.47x = 5,260.71 × 2,398.87
  4. Step 4: Simplify right side
    3,813.47x = 12,619,759.40
  5. Step 5: Solve for x
    x = 12,619,759.40/3,813.47
  6. Step 6: Final answer
    x = 3,309.26

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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.