Home / 3,315.21-4,972.79-1,006.71

Finding the Fourth Proportional to 3,315.21, 4,972.79 and 1,006.71

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Solution

The fourth proportional to 3,315.21, 4,972.79 and 1,006.71 is: 1,510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.21 : 4,972.79 = 1,006.71 : x
  2. Step 2: Convert to fraction form
    3,315.21/4,972.79 = 1,006.71/x
  3. Step 3: Cross multiply
    3,315.21x = 4,972.79 × 1,006.71
  4. Step 4: Simplify right side
    3,315.21x = 5,006,159.94
  5. Step 5: Solve for x
    x = 5,006,159.94/3,315.21
  6. Step 6: Final answer
    x = 1,510.06

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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.