Home / 3,528.72-4,869.70-1,956.80

Finding the Fourth Proportional to 3,528.72, 4,869.70 and 1,956.80

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Solution

The fourth proportional to 3,528.72, 4,869.70 and 1,956.80 is: 2,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.72 : 4,869.70 = 1,956.80 : x
  2. Step 2: Convert to fraction form
    3,528.72/4,869.70 = 1,956.80/x
  3. Step 3: Cross multiply
    3,528.72x = 4,869.70 × 1,956.80
  4. Step 4: Simplify right side
    3,528.72x = 9,529,036.24
  5. Step 5: Solve for x
    x = 9,529,036.24/3,528.72
  6. Step 6: Final answer
    x = 2,700.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.