Home / 6,320.50-8,722.16-3,487.77

Finding the Fourth Proportional to 6,320.50, 8,722.16 and 3,487.77

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Solution

The fourth proportional to 6,320.50, 8,722.16 and 3,487.77 is: 4,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.50 : 8,722.16 = 3,487.77 : x
  2. Step 2: Convert to fraction form
    6,320.50/8,722.16 = 3,487.77/x
  3. Step 3: Cross multiply
    6,320.50x = 8,722.16 × 3,487.77
  4. Step 4: Simplify right side
    6,320.50x = 30,420,887.98
  5. Step 5: Solve for x
    x = 30,420,887.98/6,320.50
  6. Step 6: Final answer
    x = 4,813.05

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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.