Home / 3,540.40-4,887.80-2,649.06

Finding the Fourth Proportional to 3,540.40, 4,887.80 and 2,649.06

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Solution

The fourth proportional to 3,540.40, 4,887.80 and 2,649.06 is: 3,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.40 : 4,887.80 = 2,649.06 : x
  2. Step 2: Convert to fraction form
    3,540.40/4,887.80 = 2,649.06/x
  3. Step 3: Cross multiply
    3,540.40x = 4,887.80 × 2,649.06
  4. Step 4: Simplify right side
    3,540.40x = 12,948,075.47
  5. Step 5: Solve for x
    x = 12,948,075.47/3,540.40
  6. Step 6: Final answer
    x = 3,657.24

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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.