Home / 3,875.21-5,347.31-2,619.00

Finding the Fourth Proportional to 3,875.21, 5,347.31 and 2,619.00

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Solution

The fourth proportional to 3,875.21, 5,347.31 and 2,619.00 is: 3,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.21 : 5,347.31 = 2,619.00 : x
  2. Step 2: Convert to fraction form
    3,875.21/5,347.31 = 2,619.00/x
  3. Step 3: Cross multiply
    3,875.21x = 5,347.31 × 2,619.00
  4. Step 4: Simplify right side
    3,875.21x = 14,004,578.43
  5. Step 5: Solve for x
    x = 14,004,578.43/3,875.21
  6. Step 6: Final answer
    x = 3,613.89

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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.