Home / 3,945.35-5,916.29-1,478.44

Finding the Fourth Proportional to 3,945.35, 5,916.29 and 1,478.44

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Solution

The fourth proportional to 3,945.35, 5,916.29 and 1,478.44 is: 2,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.35 : 5,916.29 = 1,478.44 : x
  2. Step 2: Convert to fraction form
    3,945.35/5,916.29 = 1,478.44/x
  3. Step 3: Cross multiply
    3,945.35x = 5,916.29 × 1,478.44
  4. Step 4: Simplify right side
    3,945.35x = 8,746,879.79
  5. Step 5: Solve for x
    x = 8,746,879.79/3,945.35
  6. Step 6: Final answer
    x = 2,217.01

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1.5x scale

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.