Home / 3,408.29-4,703.75-1,916.57

Finding the Fourth Proportional to 3,408.29, 4,703.75 and 1,916.57

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Solution

The fourth proportional to 3,408.29, 4,703.75 and 1,916.57 is: 2,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.29 : 4,703.75 = 1,916.57 : x
  2. Step 2: Convert to fraction form
    3,408.29/4,703.75 = 1,916.57/x
  3. Step 3: Cross multiply
    3,408.29x = 4,703.75 × 1,916.57
  4. Step 4: Simplify right side
    3,408.29x = 9,015,033.04
  5. Step 5: Solve for x
    x = 9,015,033.04/3,408.29
  6. Step 6: Final answer
    x = 2,645.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.