Home / 2,955.15-4,430.97-2,609.28

Finding the Fourth Proportional to 2,955.15, 4,430.97 and 2,609.28

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Solution

The fourth proportional to 2,955.15, 4,430.97 and 2,609.28 is: 3,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.15 : 4,430.97 = 2,609.28 : x
  2. Step 2: Convert to fraction form
    2,955.15/4,430.97 = 2,609.28/x
  3. Step 3: Cross multiply
    2,955.15x = 4,430.97 × 2,609.28
  4. Step 4: Simplify right side
    2,955.15x = 11,561,641.40
  5. Step 5: Solve for x
    x = 11,561,641.40/2,955.15
  6. Step 6: Final answer
    x = 3,912.37

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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.