Home / 4,142.40-5,714.09-2,649.77

Finding the Fourth Proportional to 4,142.40, 5,714.09 and 2,649.77

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Solution

The fourth proportional to 4,142.40, 5,714.09 and 2,649.77 is: 3,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.40 : 5,714.09 = 2,649.77 : x
  2. Step 2: Convert to fraction form
    4,142.40/5,714.09 = 2,649.77/x
  3. Step 3: Cross multiply
    4,142.40x = 5,714.09 × 2,649.77
  4. Step 4: Simplify right side
    4,142.40x = 15,140,982.44
  5. Step 5: Solve for x
    x = 15,140,982.44/4,142.40
  6. Step 6: Final answer
    x = 3,655.12

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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.