Home / 4,780.14-7,172.64-2,182.74

Finding the Fourth Proportional to 4,780.14, 7,172.64 and 2,182.74

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Solution

The fourth proportional to 4,780.14, 7,172.64 and 2,182.74 is: 3,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.14 : 7,172.64 = 2,182.74 : x
  2. Step 2: Convert to fraction form
    4,780.14/7,172.64 = 2,182.74/x
  3. Step 3: Cross multiply
    4,780.14x = 7,172.64 × 2,182.74
  4. Step 4: Simplify right side
    4,780.14x = 15,656,008.23
  5. Step 5: Solve for x
    x = 15,656,008.23/4,780.14
  6. Step 6: Final answer
    x = 3,275.22

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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.