Home / 7,321.41-10,104.26-4,178.07

Finding the Fourth Proportional to 7,321.41, 10,104.26 and 4,178.07

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Solution

The fourth proportional to 7,321.41, 10,104.26 and 4,178.07 is: 5,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.41 : 10,104.26 = 4,178.07 : x
  2. Step 2: Convert to fraction form
    7,321.41/10,104.26 = 4,178.07/x
  3. Step 3: Cross multiply
    7,321.41x = 10,104.26 × 4,178.07
  4. Step 4: Simplify right side
    7,321.41x = 42,216,265.50
  5. Step 5: Solve for x
    x = 42,216,265.50/7,321.41
  6. Step 6: Final answer
    x = 5,766.14

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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.