Home / 4,608.81-6,912.20-1,321.17

Finding the Fourth Proportional to 4,608.81, 6,912.20 and 1,321.17

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Solution

The fourth proportional to 4,608.81, 6,912.20 and 1,321.17 is: 1,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.81 : 6,912.20 = 1,321.17 : x
  2. Step 2: Convert to fraction form
    4,608.81/6,912.20 = 1,321.17/x
  3. Step 3: Cross multiply
    4,608.81x = 6,912.20 × 1,321.17
  4. Step 4: Simplify right side
    4,608.81x = 9,132,184.67
  5. Step 5: Solve for x
    x = 9,132,184.67/4,608.81
  6. Step 6: Final answer
    x = 1,981.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.