Home / 2,259.72-3,390.95-961.19

Finding the Fourth Proportional to 2,259.72, 3,390.95 and 961.19

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Solution

The fourth proportional to 2,259.72, 3,390.95 and 961.19 is: 1,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.72 : 3,390.95 = 961.19 : x
  2. Step 2: Convert to fraction form
    2,259.72/3,390.95 = 961.19/x
  3. Step 3: Cross multiply
    2,259.72x = 3,390.95 × 961.19
  4. Step 4: Simplify right side
    2,259.72x = 3,259,347.23
  5. Step 5: Solve for x
    x = 3,259,347.23/2,259.72
  6. Step 6: Final answer
    x = 1,442.37

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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.