Home / 1,649.28-2,272.14-1,356.24

Finding the Fourth Proportional to 1,649.28, 2,272.14 and 1,356.24

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Solution

The fourth proportional to 1,649.28, 2,272.14 and 1,356.24 is: 1,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.28 : 2,272.14 = 1,356.24 : x
  2. Step 2: Convert to fraction form
    1,649.28/2,272.14 = 1,356.24/x
  3. Step 3: Cross multiply
    1,649.28x = 2,272.14 × 1,356.24
  4. Step 4: Simplify right side
    1,649.28x = 3,081,567.15
  5. Step 5: Solve for x
    x = 3,081,567.15/1,649.28
  6. Step 6: Final answer
    x = 1,868.43

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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.