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Finding the Fourth Proportional to 2,966.48, 4,449.19 and 775.09

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Solution

The fourth proportional to 2,966.48, 4,449.19 and 775.09 is: 1,162.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.48 : 4,449.19 = 775.09 : x
  2. Step 2: Convert to fraction form
    2,966.48/4,449.19 = 775.09/x
  3. Step 3: Cross multiply
    2,966.48x = 4,449.19 × 775.09
  4. Step 4: Simplify right side
    2,966.48x = 3,448,522.68
  5. Step 5: Solve for x
    x = 3,448,522.68/2,966.48
  6. Step 6: Final answer
    x = 1,162.50

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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.