Home / 1,535.09-2,118.44-871.93

Finding the Fourth Proportional to 1,535.09, 2,118.44 and 871.93

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Solution

The fourth proportional to 1,535.09, 2,118.44 and 871.93 is: 1,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.09 : 2,118.44 = 871.93 : x
  2. Step 2: Convert to fraction form
    1,535.09/2,118.44 = 871.93/x
  3. Step 3: Cross multiply
    1,535.09x = 2,118.44 × 871.93
  4. Step 4: Simplify right side
    1,535.09x = 1,847,131.39
  5. Step 5: Solve for x
    x = 1,847,131.39/1,535.09
  6. Step 6: Final answer
    x = 1,203.27

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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.