Home / 6,121.22-8,438.10-4,792.62

Finding the Fourth Proportional to 6,121.22, 8,438.10 and 4,792.62

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Solution

The fourth proportional to 6,121.22, 8,438.10 and 4,792.62 is: 6,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.22 : 8,438.10 = 4,792.62 : x
  2. Step 2: Convert to fraction form
    6,121.22/8,438.10 = 4,792.62/x
  3. Step 3: Cross multiply
    6,121.22x = 8,438.10 × 4,792.62
  4. Step 4: Simplify right side
    6,121.22x = 40,440,586.51
  5. Step 5: Solve for x
    x = 40,440,586.51/6,121.22
  6. Step 6: Final answer
    x = 6,606.62

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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.