Home / 2,189.51-3,264.98-2,169.77

Finding the Fourth Proportional to 2,189.51, 3,264.98 and 2,169.77

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Solution

The fourth proportional to 2,189.51, 3,264.98 and 2,169.77 is: 3,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.51 : 3,264.98 = 2,169.77 : x
  2. Step 2: Convert to fraction form
    2,189.51/3,264.98 = 2,169.77/x
  3. Step 3: Cross multiply
    2,189.51x = 3,264.98 × 2,169.77
  4. Step 4: Simplify right side
    2,189.51x = 7,084,244.75
  5. Step 5: Solve for x
    x = 7,084,244.75/2,189.51
  6. Step 6: Final answer
    x = 3,235.54

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.