Home / 1,285.17-1,926.13-1,071.33

Finding the Fourth Proportional to 1,285.17, 1,926.13 and 1,071.33

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Solution

The fourth proportional to 1,285.17, 1,926.13 and 1,071.33 is: 1,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.17 : 1,926.13 = 1,071.33 : x
  2. Step 2: Convert to fraction form
    1,285.17/1,926.13 = 1,071.33/x
  3. Step 3: Cross multiply
    1,285.17x = 1,926.13 × 1,071.33
  4. Step 4: Simplify right side
    1,285.17x = 2,063,505.87
  5. Step 5: Solve for x
    x = 2,063,505.87/1,285.17
  6. Step 6: Final answer
    x = 1,605.63

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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.