Home / 1,588.14-2,191.36-998.25

Finding the Fourth Proportional to 1,588.14, 2,191.36 and 998.25

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Solution

The fourth proportional to 1,588.14, 2,191.36 and 998.25 is: 1,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.14 : 2,191.36 = 998.25 : x
  2. Step 2: Convert to fraction form
    1,588.14/2,191.36 = 998.25/x
  3. Step 3: Cross multiply
    1,588.14x = 2,191.36 × 998.25
  4. Step 4: Simplify right side
    1,588.14x = 2,187,525.12
  5. Step 5: Solve for x
    x = 2,187,525.12/1,588.14
  6. Step 6: Final answer
    x = 1,377.42

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Double scale
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1.5x scale

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.