Home / 6,405.30-8,838.18-3,610.80

Finding the Fourth Proportional to 6,405.30, 8,838.18 and 3,610.80

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Solution

The fourth proportional to 6,405.30, 8,838.18 and 3,610.80 is: 4,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.30 : 8,838.18 = 3,610.80 : x
  2. Step 2: Convert to fraction form
    6,405.30/8,838.18 = 3,610.80/x
  3. Step 3: Cross multiply
    6,405.30x = 8,838.18 × 3,610.80
  4. Step 4: Simplify right side
    6,405.30x = 31,912,900.34
  5. Step 5: Solve for x
    x = 31,912,900.34/6,405.30
  6. Step 6: Final answer
    x = 4,982.26

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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.