Home / 4,887.20-6,744.40-2,649.11

Finding the Fourth Proportional to 4,887.20, 6,744.40 and 2,649.11

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Solution

The fourth proportional to 4,887.20, 6,744.40 and 2,649.11 is: 3,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.20 : 6,744.40 = 2,649.11 : x
  2. Step 2: Convert to fraction form
    4,887.20/6,744.40 = 2,649.11/x
  3. Step 3: Cross multiply
    4,887.20x = 6,744.40 × 2,649.11
  4. Step 4: Simplify right side
    4,887.20x = 17,866,617.14
  5. Step 5: Solve for x
    x = 17,866,617.14/4,887.20
  6. Step 6: Final answer
    x = 3,655.80

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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.