Home / 6,309.90-8,708.50-3,622.18

Finding the Fourth Proportional to 6,309.90, 8,708.50 and 3,622.18

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Solution

The fourth proportional to 6,309.90, 8,708.50 and 3,622.18 is: 4,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.90 : 8,708.50 = 3,622.18 : x
  2. Step 2: Convert to fraction form
    6,309.90/8,708.50 = 3,622.18/x
  3. Step 3: Cross multiply
    6,309.90x = 8,708.50 × 3,622.18
  4. Step 4: Simplify right side
    6,309.90x = 31,543,754.53
  5. Step 5: Solve for x
    x = 31,543,754.53/6,309.90
  6. Step 6: Final answer
    x = 4,999.09

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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.