Home / 1,922.91-2,871.56-1,902.35

Finding the Fourth Proportional to 1,922.91, 2,871.56 and 1,902.35

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Solution

The fourth proportional to 1,922.91, 2,871.56 and 1,902.35 is: 2,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.91 : 2,871.56 = 1,902.35 : x
  2. Step 2: Convert to fraction form
    1,922.91/2,871.56 = 1,902.35/x
  3. Step 3: Cross multiply
    1,922.91x = 2,871.56 × 1,902.35
  4. Step 4: Simplify right side
    1,922.91x = 5,462,688.30
  5. Step 5: Solve for x
    x = 5,462,688.30/1,922.91
  6. Step 6: Final answer
    x = 2,840.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.