Home / 6,320.32-8,722.26-3,487.80

Finding the Fourth Proportional to 6,320.32, 8,722.26 and 3,487.80

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Solution

The fourth proportional to 6,320.32, 8,722.26 and 3,487.80 is: 4,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.32 : 8,722.26 = 3,487.80 : x
  2. Step 2: Convert to fraction form
    6,320.32/8,722.26 = 3,487.80/x
  3. Step 3: Cross multiply
    6,320.32x = 8,722.26 × 3,487.80
  4. Step 4: Simplify right side
    6,320.32x = 30,421,476.62
  5. Step 5: Solve for x
    x = 30,421,476.62/6,320.32
  6. Step 6: Final answer
    x = 4,813.28

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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.