Home / 5,370.28-7,405.88-4,111.39

Finding the Fourth Proportional to 5,370.28, 7,405.88 and 4,111.39

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Solution

The fourth proportional to 5,370.28, 7,405.88 and 4,111.39 is: 5,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.28 : 7,405.88 = 4,111.39 : x
  2. Step 2: Convert to fraction form
    5,370.28/7,405.88 = 4,111.39/x
  3. Step 3: Cross multiply
    5,370.28x = 7,405.88 × 4,111.39
  4. Step 4: Simplify right side
    5,370.28x = 30,448,472.80
  5. Step 5: Solve for x
    x = 30,448,472.80/5,370.28
  6. Step 6: Final answer
    x = 5,669.81

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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.