Home / 1,606.13-2,218.28-1,081.25

Finding the Fourth Proportional to 1,606.13, 2,218.28 and 1,081.25

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Solution

The fourth proportional to 1,606.13, 2,218.28 and 1,081.25 is: 1,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.13 : 2,218.28 = 1,081.25 : x
  2. Step 2: Convert to fraction form
    1,606.13/2,218.28 = 1,081.25/x
  3. Step 3: Cross multiply
    1,606.13x = 2,218.28 × 1,081.25
  4. Step 4: Simplify right side
    1,606.13x = 2,398,498.75
  5. Step 5: Solve for x
    x = 2,398,498.75/1,606.13
  6. Step 6: Final answer
    x = 1,493.35

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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.