Home / 1,434.41-2,147.96-945.98

Finding the Fourth Proportional to 1,434.41, 2,147.96 and 945.98

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Solution

The fourth proportional to 1,434.41, 2,147.96 and 945.98 is: 1,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.41 : 2,147.96 = 945.98 : x
  2. Step 2: Convert to fraction form
    1,434.41/2,147.96 = 945.98/x
  3. Step 3: Cross multiply
    1,434.41x = 2,147.96 × 945.98
  4. Step 4: Simplify right side
    1,434.41x = 2,031,911.73
  5. Step 5: Solve for x
    x = 2,031,911.73/1,434.41
  6. Step 6: Final answer
    x = 1,416.55

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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.