Home / 2,989.23-4,125.12-1,662.92

Finding the Fourth Proportional to 2,989.23, 4,125.12 and 1,662.92

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Solution

The fourth proportional to 2,989.23, 4,125.12 and 1,662.92 is: 2,294.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.23 : 4,125.12 = 1,662.92 : x
  2. Step 2: Convert to fraction form
    2,989.23/4,125.12 = 1,662.92/x
  3. Step 3: Cross multiply
    2,989.23x = 4,125.12 × 1,662.92
  4. Step 4: Simplify right side
    2,989.23x = 6,859,744.55
  5. Step 5: Solve for x
    x = 6,859,744.55/2,989.23
  6. Step 6: Final answer
    x = 2,294.82

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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.