Home / 2,124.60-3,181.48-1,664.79

Finding the Fourth Proportional to 2,124.60, 3,181.48 and 1,664.79

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Solution

The fourth proportional to 2,124.60, 3,181.48 and 1,664.79 is: 2,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.60 : 3,181.48 = 1,664.79 : x
  2. Step 2: Convert to fraction form
    2,124.60/3,181.48 = 1,664.79/x
  3. Step 3: Cross multiply
    2,124.60x = 3,181.48 × 1,664.79
  4. Step 4: Simplify right side
    2,124.60x = 5,296,480.00
  5. Step 5: Solve for x
    x = 5,296,480.00/2,124.60
  6. Step 6: Final answer
    x = 2,492.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.