Home / 1,669.41-2,505.40-1,583.76

Finding the Fourth Proportional to 1,669.41, 2,505.40 and 1,583.76

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Solution

The fourth proportional to 1,669.41, 2,505.40 and 1,583.76 is: 2,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.41 : 2,505.40 = 1,583.76 : x
  2. Step 2: Convert to fraction form
    1,669.41/2,505.40 = 1,583.76/x
  3. Step 3: Cross multiply
    1,669.41x = 2,505.40 × 1,583.76
  4. Step 4: Simplify right side
    1,669.41x = 3,967,952.30
  5. Step 5: Solve for x
    x = 3,967,952.30/1,669.41
  6. Step 6: Final answer
    x = 2,376.86

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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.