Home / 3,813.84-5,259.60-2,487.06

Finding the Fourth Proportional to 3,813.84, 5,259.60 and 2,487.06

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Solution

The fourth proportional to 3,813.84, 5,259.60 and 2,487.06 is: 3,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.84 : 5,259.60 = 2,487.06 : x
  2. Step 2: Convert to fraction form
    3,813.84/5,259.60 = 2,487.06/x
  3. Step 3: Cross multiply
    3,813.84x = 5,259.60 × 2,487.06
  4. Step 4: Simplify right side
    3,813.84x = 13,080,940.78
  5. Step 5: Solve for x
    x = 13,080,940.78/3,813.84
  6. Step 6: Final answer
    x = 3,429.86

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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.