Home / 1,786.34-2,670.75-1,515.46

Finding the Fourth Proportional to 1,786.34, 2,670.75 and 1,515.46

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Solution

The fourth proportional to 1,786.34, 2,670.75 and 1,515.46 is: 2,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.34 : 2,670.75 = 1,515.46 : x
  2. Step 2: Convert to fraction form
    1,786.34/2,670.75 = 1,515.46/x
  3. Step 3: Cross multiply
    1,786.34x = 2,670.75 × 1,515.46
  4. Step 4: Simplify right side
    1,786.34x = 4,047,414.80
  5. Step 5: Solve for x
    x = 4,047,414.80/1,786.34
  6. Step 6: Final answer
    x = 2,265.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.