Home / 2,989.22-4,124.98-1,662.92

Finding the Fourth Proportional to 2,989.22, 4,124.98 and 1,662.92

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Solution

The fourth proportional to 2,989.22, 4,124.98 and 1,662.92 is: 2,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.22 : 4,124.98 = 1,662.92 : x
  2. Step 2: Convert to fraction form
    2,989.22/4,124.98 = 1,662.92/x
  3. Step 3: Cross multiply
    2,989.22x = 4,124.98 × 1,662.92
  4. Step 4: Simplify right side
    2,989.22x = 6,859,511.74
  5. Step 5: Solve for x
    x = 6,859,511.74/2,989.22
  6. Step 6: Final answer
    x = 2,294.75

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1.5x scale

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.