Home / 3,138.08-4,709.28-1,600.16

Finding the Fourth Proportional to 3,138.08, 4,709.28 and 1,600.16

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Solution

The fourth proportional to 3,138.08, 4,709.28 and 1,600.16 is: 2,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.08 : 4,709.28 = 1,600.16 : x
  2. Step 2: Convert to fraction form
    3,138.08/4,709.28 = 1,600.16/x
  3. Step 3: Cross multiply
    3,138.08x = 4,709.28 × 1,600.16
  4. Step 4: Simplify right side
    3,138.08x = 7,535,601.48
  5. Step 5: Solve for x
    x = 7,535,601.48/3,138.08
  6. Step 6: Final answer
    x = 2,401.34

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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.