Home / 2,847.83-3,931.78-2,183.40

Finding the Fourth Proportional to 2,847.83, 3,931.78 and 2,183.40

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Solution

The fourth proportional to 2,847.83, 3,931.78 and 2,183.40 is: 3,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.83 : 3,931.78 = 2,183.40 : x
  2. Step 2: Convert to fraction form
    2,847.83/3,931.78 = 2,183.40/x
  3. Step 3: Cross multiply
    2,847.83x = 3,931.78 × 2,183.40
  4. Step 4: Simplify right side
    2,847.83x = 8,584,663.74
  5. Step 5: Solve for x
    x = 8,584,663.74/2,847.83
  6. Step 6: Final answer
    x = 3,014.46

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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.