Home / 5,429.60-8,144.96-1,966.08

Finding the Fourth Proportional to 5,429.60, 8,144.96 and 1,966.08

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Solution

The fourth proportional to 5,429.60, 8,144.96 and 1,966.08 is: 2,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.60 : 8,144.96 = 1,966.08 : x
  2. Step 2: Convert to fraction form
    5,429.60/8,144.96 = 1,966.08/x
  3. Step 3: Cross multiply
    5,429.60x = 8,144.96 × 1,966.08
  4. Step 4: Simplify right side
    5,429.60x = 16,013,642.96
  5. Step 5: Solve for x
    x = 16,013,642.96/5,429.60
  6. Step 6: Final answer
    x = 2,949.32

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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.