Home / 2,615.19-3,612.22-1,955.04

Finding the Fourth Proportional to 2,615.19, 3,612.22 and 1,955.04

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Solution

The fourth proportional to 2,615.19, 3,612.22 and 1,955.04 is: 2,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.19 : 3,612.22 = 1,955.04 : x
  2. Step 2: Convert to fraction form
    2,615.19/3,612.22 = 1,955.04/x
  3. Step 3: Cross multiply
    2,615.19x = 3,612.22 × 1,955.04
  4. Step 4: Simplify right side
    2,615.19x = 7,062,034.59
  5. Step 5: Solve for x
    x = 7,062,034.59/2,615.19
  6. Step 6: Final answer
    x = 2,700.39

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Double scale
Find fourth proportional to 2,616.19, 3,613.60 and 1,956.04
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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.