Home / 3,119.92-4,683.60-2,471.20

Finding the Fourth Proportional to 3,119.92, 4,683.60 and 2,471.20

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Solution

The fourth proportional to 3,119.92, 4,683.60 and 2,471.20 is: 3,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.92 : 4,683.60 = 2,471.20 : x
  2. Step 2: Convert to fraction form
    3,119.92/4,683.60 = 2,471.20/x
  3. Step 3: Cross multiply
    3,119.92x = 4,683.60 × 2,471.20
  4. Step 4: Simplify right side
    3,119.92x = 11,574,112.32
  5. Step 5: Solve for x
    x = 11,574,112.32/3,119.92
  6. Step 6: Final answer
    x = 3,709.75

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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.