Home / 3,313.41-4,570.97-2,117.79

Finding the Fourth Proportional to 3,313.41, 4,570.97 and 2,117.79

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Solution

The fourth proportional to 3,313.41, 4,570.97 and 2,117.79 is: 2,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.41 : 4,570.97 = 2,117.79 : x
  2. Step 2: Convert to fraction form
    3,313.41/4,570.97 = 2,117.79/x
  3. Step 3: Cross multiply
    3,313.41x = 4,570.97 × 2,117.79
  4. Step 4: Simplify right side
    3,313.41x = 9,680,343.97
  5. Step 5: Solve for x
    x = 9,680,343.97/3,313.41
  6. Step 6: Final answer
    x = 2,921.57

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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.