Home / 7,321.32-10,981.46-2,390.86

Finding the Fourth Proportional to 7,321.32, 10,981.46 and 2,390.86

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Solution

The fourth proportional to 7,321.32, 10,981.46 and 2,390.86 is: 3,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.32 : 10,981.46 = 2,390.86 : x
  2. Step 2: Convert to fraction form
    7,321.32/10,981.46 = 2,390.86/x
  3. Step 3: Cross multiply
    7,321.32x = 10,981.46 × 2,390.86
  4. Step 4: Simplify right side
    7,321.32x = 26,255,133.46
  5. Step 5: Solve for x
    x = 26,255,133.46/7,321.32
  6. Step 6: Final answer
    x = 3,586.12

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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.