Home / 6,890.23-10,318.92-3,765.55

Finding the Fourth Proportional to 6,890.23, 10,318.92 and 3,765.55

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Solution

The fourth proportional to 6,890.23, 10,318.92 and 3,765.55 is: 5,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.23 : 10,318.92 = 3,765.55 : x
  2. Step 2: Convert to fraction form
    6,890.23/10,318.92 = 3,765.55/x
  3. Step 3: Cross multiply
    6,890.23x = 10,318.92 × 3,765.55
  4. Step 4: Simplify right side
    6,890.23x = 38,856,409.21
  5. Step 5: Solve for x
    x = 38,856,409.21/6,890.23
  6. Step 6: Final answer
    x = 5,639.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.