Home / 1,972.23-2,953.21-1,913.79

Finding the Fourth Proportional to 1,972.23, 2,953.21 and 1,913.79

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Solution

The fourth proportional to 1,972.23, 2,953.21 and 1,913.79 is: 2,865.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.23 : 2,953.21 = 1,913.79 : x
  2. Step 2: Convert to fraction form
    1,972.23/2,953.21 = 1,913.79/x
  3. Step 3: Cross multiply
    1,972.23x = 2,953.21 × 1,913.79
  4. Step 4: Simplify right side
    1,972.23x = 5,651,823.77
  5. Step 5: Solve for x
    x = 5,651,823.77/1,972.23
  6. Step 6: Final answer
    x = 2,865.71

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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.