Home / 1,609.48-2,220.33-1,137.38

Finding the Fourth Proportional to 1,609.48, 2,220.33 and 1,137.38

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Solution

The fourth proportional to 1,609.48, 2,220.33 and 1,137.38 is: 1,569.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.48 : 2,220.33 = 1,137.38 : x
  2. Step 2: Convert to fraction form
    1,609.48/2,220.33 = 1,137.38/x
  3. Step 3: Cross multiply
    1,609.48x = 2,220.33 × 1,137.38
  4. Step 4: Simplify right side
    1,609.48x = 2,525,364.49
  5. Step 5: Solve for x
    x = 2,525,364.49/1,609.48
  6. Step 6: Final answer
    x = 1,569.06

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Half scale
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Double scale
Find fourth proportional to 1,610.48, 2,221.71 and 1,138.38
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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.