Home / 4,880.70-7,315.80-2,108.69

Finding the Fourth Proportional to 4,880.70, 7,315.80 and 2,108.69

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Solution

The fourth proportional to 4,880.70, 7,315.80 and 2,108.69 is: 3,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.70 : 7,315.80 = 2,108.69 : x
  2. Step 2: Convert to fraction form
    4,880.70/7,315.80 = 2,108.69/x
  3. Step 3: Cross multiply
    4,880.70x = 7,315.80 × 2,108.69
  4. Step 4: Simplify right side
    4,880.70x = 15,426,717.72
  5. Step 5: Solve for x
    x = 15,426,717.72/4,880.70
  6. Step 6: Final answer
    x = 3,160.76

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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.