Home / 3,215.96-4,434.76-1,955.78

Finding the Fourth Proportional to 3,215.96, 4,434.76 and 1,955.78

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Solution

The fourth proportional to 3,215.96, 4,434.76 and 1,955.78 is: 2,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.96 : 4,434.76 = 1,955.78 : x
  2. Step 2: Convert to fraction form
    3,215.96/4,434.76 = 1,955.78/x
  3. Step 3: Cross multiply
    3,215.96x = 4,434.76 × 1,955.78
  4. Step 4: Simplify right side
    3,215.96x = 8,673,428.44
  5. Step 5: Solve for x
    x = 8,673,428.44/3,215.96
  6. Step 6: Final answer
    x = 2,697.00

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Double scale
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Similar ratio
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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.