Home / 4,769.90-7,154.78-1,307.15

Finding the Fourth Proportional to 4,769.90, 7,154.78 and 1,307.15

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Solution

The fourth proportional to 4,769.90, 7,154.78 and 1,307.15 is: 1,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,769.90 : 7,154.78 = 1,307.15 : x
  2. Step 2: Convert to fraction form
    4,769.90/7,154.78 = 1,307.15/x
  3. Step 3: Cross multiply
    4,769.90x = 7,154.78 × 1,307.15
  4. Step 4: Simplify right side
    4,769.90x = 9,352,382.03
  5. Step 5: Solve for x
    x = 9,352,382.03/4,769.90
  6. Step 6: Final answer
    x = 1,960.71

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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.