Home / 2,956.95-4,429.35-1,972.80

Finding the Fourth Proportional to 2,956.95, 4,429.35 and 1,972.80

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Solution

The fourth proportional to 2,956.95, 4,429.35 and 1,972.80 is: 2,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.95 : 4,429.35 = 1,972.80 : x
  2. Step 2: Convert to fraction form
    2,956.95/4,429.35 = 1,972.80/x
  3. Step 3: Cross multiply
    2,956.95x = 4,429.35 × 1,972.80
  4. Step 4: Simplify right side
    2,956.95x = 8,738,221.68
  5. Step 5: Solve for x
    x = 8,738,221.68/2,956.95
  6. Step 6: Final answer
    x = 2,955.15

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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.