Home / 3,438.26-4,744.80-2,111.92

Finding the Fourth Proportional to 3,438.26, 4,744.80 and 2,111.92

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Solution

The fourth proportional to 3,438.26, 4,744.80 and 2,111.92 is: 2,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.26 : 4,744.80 = 2,111.92 : x
  2. Step 2: Convert to fraction form
    3,438.26/4,744.80 = 2,111.92/x
  3. Step 3: Cross multiply
    3,438.26x = 4,744.80 × 2,111.92
  4. Step 4: Simplify right side
    3,438.26x = 10,020,638.02
  5. Step 5: Solve for x
    x = 10,020,638.02/3,438.26
  6. Step 6: Final answer
    x = 2,914.45

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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.