Home / 2,992.31-4,129.46-1,666.14

Finding the Fourth Proportional to 2,992.31, 4,129.46 and 1,666.14

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Solution

The fourth proportional to 2,992.31, 4,129.46 and 1,666.14 is: 2,299.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.31 : 4,129.46 = 1,666.14 : x
  2. Step 2: Convert to fraction form
    2,992.31/4,129.46 = 1,666.14/x
  3. Step 3: Cross multiply
    2,992.31x = 4,129.46 × 1,666.14
  4. Step 4: Simplify right side
    2,992.31x = 6,880,258.48
  5. Step 5: Solve for x
    x = 6,880,258.48/2,992.31
  6. Step 6: Final answer
    x = 2,299.31

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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.