Home / 6,320.37-8,722.19-3,487.86

Finding the Fourth Proportional to 6,320.37, 8,722.19 and 3,487.86

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Solution

The fourth proportional to 6,320.37, 8,722.19 and 3,487.86 is: 4,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.37 : 8,722.19 = 3,487.86 : x
  2. Step 2: Convert to fraction form
    6,320.37/8,722.19 = 3,487.86/x
  3. Step 3: Cross multiply
    6,320.37x = 8,722.19 × 3,487.86
  4. Step 4: Simplify right side
    6,320.37x = 30,421,777.61
  5. Step 5: Solve for x
    x = 30,421,777.61/6,320.37
  6. Step 6: Final answer
    x = 4,813.29

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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.