Home / 1,333.83-2,010.91-1,239.87

Finding the Fourth Proportional to 1,333.83, 2,010.91 and 1,239.87

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Solution

The fourth proportional to 1,333.83, 2,010.91 and 1,239.87 is: 1,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.83 : 2,010.91 = 1,239.87 : x
  2. Step 2: Convert to fraction form
    1,333.83/2,010.91 = 1,239.87/x
  3. Step 3: Cross multiply
    1,333.83x = 2,010.91 × 1,239.87
  4. Step 4: Simplify right side
    1,333.83x = 2,493,266.98
  5. Step 5: Solve for x
    x = 2,493,266.98/1,333.83
  6. Step 6: Final answer
    x = 1,869.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.