Home / 5,429.84-8,146.20-1,967.60

Finding the Fourth Proportional to 5,429.84, 8,146.20 and 1,967.60

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Solution

The fourth proportional to 5,429.84, 8,146.20 and 1,967.60 is: 2,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.84 : 8,146.20 = 1,967.60 : x
  2. Step 2: Convert to fraction form
    5,429.84/8,146.20 = 1,967.60/x
  3. Step 3: Cross multiply
    5,429.84x = 8,146.20 × 1,967.60
  4. Step 4: Simplify right side
    5,429.84x = 16,028,463.12
  5. Step 5: Solve for x
    x = 16,028,463.12/5,429.84
  6. Step 6: Final answer
    x = 2,951.92

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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.