Home / 2,018.28-2,781.36-1,646.22

Finding the Fourth Proportional to 2,018.28, 2,781.36 and 1,646.22

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Solution

The fourth proportional to 2,018.28, 2,781.36 and 1,646.22 is: 2,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.28 : 2,781.36 = 1,646.22 : x
  2. Step 2: Convert to fraction form
    2,018.28/2,781.36 = 1,646.22/x
  3. Step 3: Cross multiply
    2,018.28x = 2,781.36 × 1,646.22
  4. Step 4: Simplify right side
    2,018.28x = 4,578,730.46
  5. Step 5: Solve for x
    x = 4,578,730.46/2,018.28
  6. Step 6: Final answer
    x = 2,268.63

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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.