Home / 1,615.74-2,234.97-1,511.25

Finding the Fourth Proportional to 1,615.74, 2,234.97 and 1,511.25

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Solution

The fourth proportional to 1,615.74, 2,234.97 and 1,511.25 is: 2,090.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.74 : 2,234.97 = 1,511.25 : x
  2. Step 2: Convert to fraction form
    1,615.74/2,234.97 = 1,511.25/x
  3. Step 3: Cross multiply
    1,615.74x = 2,234.97 × 1,511.25
  4. Step 4: Simplify right side
    1,615.74x = 3,377,598.41
  5. Step 5: Solve for x
    x = 3,377,598.41/1,615.74
  6. Step 6: Final answer
    x = 2,090.43

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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.