Home / 2,942.63-4,408.53-1,707.78

Finding the Fourth Proportional to 2,942.63, 4,408.53 and 1,707.78

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Solution

The fourth proportional to 2,942.63, 4,408.53 and 1,707.78 is: 2,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.63 : 4,408.53 = 1,707.78 : x
  2. Step 2: Convert to fraction form
    2,942.63/4,408.53 = 1,707.78/x
  3. Step 3: Cross multiply
    2,942.63x = 4,408.53 × 1,707.78
  4. Step 4: Simplify right side
    2,942.63x = 7,528,809.49
  5. Step 5: Solve for x
    x = 7,528,809.49/2,942.63
  6. Step 6: Final answer
    x = 2,558.53

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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.