Home / 3,391.59-4,679.70-2,448.81

Finding the Fourth Proportional to 3,391.59, 4,679.70 and 2,448.81

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Solution

The fourth proportional to 3,391.59, 4,679.70 and 2,448.81 is: 3,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.59 : 4,679.70 = 2,448.81 : x
  2. Step 2: Convert to fraction form
    3,391.59/4,679.70 = 2,448.81/x
  3. Step 3: Cross multiply
    3,391.59x = 4,679.70 × 2,448.81
  4. Step 4: Simplify right side
    3,391.59x = 11,459,696.16
  5. Step 5: Solve for x
    x = 11,459,696.16/3,391.59
  6. Step 6: Final answer
    x = 3,378.86

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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.