Home / 3,125.60-4,687.02-1,664.41

Finding the Fourth Proportional to 3,125.60, 4,687.02 and 1,664.41

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Solution

The fourth proportional to 3,125.60, 4,687.02 and 1,664.41 is: 2,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.60 : 4,687.02 = 1,664.41 : x
  2. Step 2: Convert to fraction form
    3,125.60/4,687.02 = 1,664.41/x
  3. Step 3: Cross multiply
    3,125.60x = 4,687.02 × 1,664.41
  4. Step 4: Simplify right side
    3,125.60x = 7,801,122.96
  5. Step 5: Solve for x
    x = 7,801,122.96/3,125.60
  6. Step 6: Final answer
    x = 2,495.88

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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.