Home / 4,882.48-7,312.78-2,930.65

Finding the Fourth Proportional to 4,882.48, 7,312.78 and 2,930.65

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Solution

The fourth proportional to 4,882.48, 7,312.78 and 2,930.65 is: 4,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,882.48 : 7,312.78 = 2,930.65 : x
  2. Step 2: Convert to fraction form
    4,882.48/7,312.78 = 2,930.65/x
  3. Step 3: Cross multiply
    4,882.48x = 7,312.78 × 2,930.65
  4. Step 4: Simplify right side
    4,882.48x = 21,431,198.71
  5. Step 5: Solve for x
    x = 21,431,198.71/4,882.48
  6. Step 6: Final answer
    x = 4,389.41

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1.5x scale

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.