Home / 2,642.20-3,649.22-1,801.46

Finding the Fourth Proportional to 2,642.20, 3,649.22 and 1,801.46

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Solution

The fourth proportional to 2,642.20, 3,649.22 and 1,801.46 is: 2,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.20 : 3,649.22 = 1,801.46 : x
  2. Step 2: Convert to fraction form
    2,642.20/3,649.22 = 1,801.46/x
  3. Step 3: Cross multiply
    2,642.20x = 3,649.22 × 1,801.46
  4. Step 4: Simplify right side
    2,642.20x = 6,573,923.86
  5. Step 5: Solve for x
    x = 6,573,923.86/2,642.20
  6. Step 6: Final answer
    x = 2,488.05

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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.