Home / 1,605.13-2,215.18-941.74

Finding the Fourth Proportional to 1,605.13, 2,215.18 and 941.74

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Solution

The fourth proportional to 1,605.13, 2,215.18 and 941.74 is: 1,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.13 : 2,215.18 = 941.74 : x
  2. Step 2: Convert to fraction form
    1,605.13/2,215.18 = 941.74/x
  3. Step 3: Cross multiply
    1,605.13x = 2,215.18 × 941.74
  4. Step 4: Simplify right side
    1,605.13x = 2,086,123.61
  5. Step 5: Solve for x
    x = 2,086,123.61/1,605.13
  6. Step 6: Final answer
    x = 1,299.66

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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.