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Finding the Fourth Proportional to 2,966.60, 4,450.16 and 775.32

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Solution

The fourth proportional to 2,966.60, 4,450.16 and 775.32 is: 1,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.60 : 4,450.16 = 775.32 : x
  2. Step 2: Convert to fraction form
    2,966.60/4,450.16 = 775.32/x
  3. Step 3: Cross multiply
    2,966.60x = 4,450.16 × 775.32
  4. Step 4: Simplify right side
    2,966.60x = 3,450,298.05
  5. Step 5: Solve for x
    x = 3,450,298.05/2,966.60
  6. Step 6: Final answer
    x = 1,163.05

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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.