Home / 2,992.43-4,129.61-1,666.23

Finding the Fourth Proportional to 2,992.43, 4,129.61 and 1,666.23

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Solution

The fourth proportional to 2,992.43, 4,129.61 and 1,666.23 is: 2,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.43 : 4,129.61 = 1,666.23 : x
  2. Step 2: Convert to fraction form
    2,992.43/4,129.61 = 1,666.23/x
  3. Step 3: Cross multiply
    2,992.43x = 4,129.61 × 1,666.23
  4. Step 4: Simplify right side
    2,992.43x = 6,880,880.07
  5. Step 5: Solve for x
    x = 6,880,880.07/2,992.43
  6. Step 6: Final answer
    x = 2,299.43

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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.