Home / 2,960.19-4,085.09-1,615.80

Finding the Fourth Proportional to 2,960.19, 4,085.09 and 1,615.80

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Solution

The fourth proportional to 2,960.19, 4,085.09 and 1,615.80 is: 2,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.19 : 4,085.09 = 1,615.80 : x
  2. Step 2: Convert to fraction form
    2,960.19/4,085.09 = 1,615.80/x
  3. Step 3: Cross multiply
    2,960.19x = 4,085.09 × 1,615.80
  4. Step 4: Simplify right side
    2,960.19x = 6,600,680.34
  5. Step 5: Solve for x
    x = 6,600,680.34/2,960.19
  6. Step 6: Final answer
    x = 2,229.82

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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.