Home / 5,429.81-8,145.66-1,966.25

Finding the Fourth Proportional to 5,429.81, 8,145.66 and 1,966.25

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Solution

The fourth proportional to 5,429.81, 8,145.66 and 1,966.25 is: 2,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.81 : 8,145.66 = 1,966.25 : x
  2. Step 2: Convert to fraction form
    5,429.81/8,145.66 = 1,966.25/x
  3. Step 3: Cross multiply
    5,429.81x = 8,145.66 × 1,966.25
  4. Step 4: Simplify right side
    5,429.81x = 16,016,403.98
  5. Step 5: Solve for x
    x = 16,016,403.98/5,429.81
  6. Step 6: Final answer
    x = 2,949.72

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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.