Home / 1,615.66-2,229.30-1,366.44

Finding the Fourth Proportional to 1,615.66, 2,229.30 and 1,366.44

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Solution

The fourth proportional to 1,615.66, 2,229.30 and 1,366.44 is: 1,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.66 : 2,229.30 = 1,366.44 : x
  2. Step 2: Convert to fraction form
    1,615.66/2,229.30 = 1,366.44/x
  3. Step 3: Cross multiply
    1,615.66x = 2,229.30 × 1,366.44
  4. Step 4: Simplify right side
    1,615.66x = 3,046,204.69
  5. Step 5: Solve for x
    x = 3,046,204.69/1,615.66
  6. Step 6: Final answer
    x = 1,885.42

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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.