Home / 3,876.24-5,347.98-2,619.66

Finding the Fourth Proportional to 3,876.24, 5,347.98 and 2,619.66

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Solution

The fourth proportional to 3,876.24, 5,347.98 and 2,619.66 is: 3,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.24 : 5,347.98 = 2,619.66 : x
  2. Step 2: Convert to fraction form
    3,876.24/5,347.98 = 2,619.66/x
  3. Step 3: Cross multiply
    3,876.24x = 5,347.98 × 2,619.66
  4. Step 4: Simplify right side
    3,876.24x = 14,009,889.29
  5. Step 5: Solve for x
    x = 14,009,889.29/3,876.24
  6. Step 6: Final answer
    x = 3,614.30

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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.