Home / 5,366.34-7,405.61-3,129.57

Finding the Fourth Proportional to 5,366.34, 7,405.61 and 3,129.57

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Solution

The fourth proportional to 5,366.34, 7,405.61 and 3,129.57 is: 4,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.34 : 7,405.61 = 3,129.57 : x
  2. Step 2: Convert to fraction form
    5,366.34/7,405.61 = 3,129.57/x
  3. Step 3: Cross multiply
    5,366.34x = 7,405.61 × 3,129.57
  4. Step 4: Simplify right side
    5,366.34x = 23,176,359.24
  5. Step 5: Solve for x
    x = 23,176,359.24/5,366.34
  6. Step 6: Final answer
    x = 4,318.84

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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.