Home / 1,993.60-2,977.36-1,669.24

Finding the Fourth Proportional to 1,993.60, 2,977.36 and 1,669.24

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Solution

The fourth proportional to 1,993.60, 2,977.36 and 1,669.24 is: 2,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.60 : 2,977.36 = 1,669.24 : x
  2. Step 2: Convert to fraction form
    1,993.60/2,977.36 = 1,669.24/x
  3. Step 3: Cross multiply
    1,993.60x = 2,977.36 × 1,669.24
  4. Step 4: Simplify right side
    1,993.60x = 4,969,928.41
  5. Step 5: Solve for x
    x = 4,969,928.41/1,993.60
  6. Step 6: Final answer
    x = 2,492.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.