Home / 2,970.91-4,438.31-1,922.37

Finding the Fourth Proportional to 2,970.91, 4,438.31 and 1,922.37

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Solution

The fourth proportional to 2,970.91, 4,438.31 and 1,922.37 is: 2,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.91 : 4,438.31 = 1,922.37 : x
  2. Step 2: Convert to fraction form
    2,970.91/4,438.31 = 1,922.37/x
  3. Step 3: Cross multiply
    2,970.91x = 4,438.31 × 1,922.37
  4. Step 4: Simplify right side
    2,970.91x = 8,532,073.99
  5. Step 5: Solve for x
    x = 8,532,073.99/2,970.91
  6. Step 6: Final answer
    x = 2,871.87

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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.