Home / 4,721.53-7,081.41-2,188.02

Finding the Fourth Proportional to 4,721.53, 7,081.41 and 2,188.02

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Solution

The fourth proportional to 4,721.53, 7,081.41 and 2,188.02 is: 3,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.53 : 7,081.41 = 2,188.02 : x
  2. Step 2: Convert to fraction form
    4,721.53/7,081.41 = 2,188.02/x
  3. Step 3: Cross multiply
    4,721.53x = 7,081.41 × 2,188.02
  4. Step 4: Simplify right side
    4,721.53x = 15,494,266.71
  5. Step 5: Solve for x
    x = 15,494,266.71/4,721.53
  6. Step 6: Final answer
    x = 3,281.62

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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.