Home / 1,608.87-2,222.33-1,330.23

Finding the Fourth Proportional to 1,608.87, 2,222.33 and 1,330.23

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Solution

The fourth proportional to 1,608.87, 2,222.33 and 1,330.23 is: 1,837.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.87 : 2,222.33 = 1,330.23 : x
  2. Step 2: Convert to fraction form
    1,608.87/2,222.33 = 1,330.23/x
  3. Step 3: Cross multiply
    1,608.87x = 2,222.33 × 1,330.23
  4. Step 4: Simplify right side
    1,608.87x = 2,956,203.38
  5. Step 5: Solve for x
    x = 2,956,203.38/1,608.87
  6. Step 6: Final answer
    x = 1,837.44

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Half scale
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Double scale
Find fourth proportional to 1,609.87, 2,223.71 and 1,331.23
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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.