Home / 4,747.62-7,120.47-1,284.06

Finding the Fourth Proportional to 4,747.62, 7,120.47 and 1,284.06

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Solution

The fourth proportional to 4,747.62, 7,120.47 and 1,284.06 is: 1,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.62 : 7,120.47 = 1,284.06 : x
  2. Step 2: Convert to fraction form
    4,747.62/7,120.47 = 1,284.06/x
  3. Step 3: Cross multiply
    4,747.62x = 7,120.47 × 1,284.06
  4. Step 4: Simplify right side
    4,747.62x = 9,143,110.71
  5. Step 5: Solve for x
    x = 9,143,110.71/4,747.62
  6. Step 6: Final answer
    x = 1,925.83

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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.