Home / 2,259.90-3,389.70-961.26

Finding the Fourth Proportional to 2,259.90, 3,389.70 and 961.26

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Solution

The fourth proportional to 2,259.90, 3,389.70 and 961.26 is: 1,441.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.90 : 3,389.70 = 961.26 : x
  2. Step 2: Convert to fraction form
    2,259.90/3,389.70 = 961.26/x
  3. Step 3: Cross multiply
    2,259.90x = 3,389.70 × 961.26
  4. Step 4: Simplify right side
    2,259.90x = 3,258,383.02
  5. Step 5: Solve for x
    x = 3,258,383.02/2,259.90
  6. Step 6: Final answer
    x = 1,441.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.