Home / 4,607.21-6,912.01-1,320.56

Finding the Fourth Proportional to 4,607.21, 6,912.01 and 1,320.56

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Solution

The fourth proportional to 4,607.21, 6,912.01 and 1,320.56 is: 1,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,607.21 : 6,912.01 = 1,320.56 : x
  2. Step 2: Convert to fraction form
    4,607.21/6,912.01 = 1,320.56/x
  3. Step 3: Cross multiply
    4,607.21x = 6,912.01 × 1,320.56
  4. Step 4: Simplify right side
    4,607.21x = 9,127,723.93
  5. Step 5: Solve for x
    x = 9,127,723.93/4,607.21
  6. Step 6: Final answer
    x = 1,981.18

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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.