Home / 3,468.79-4,785.60-2,140.21

Finding the Fourth Proportional to 3,468.79, 4,785.60 and 2,140.21

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Solution

The fourth proportional to 3,468.79, 4,785.60 and 2,140.21 is: 2,952.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.79 : 4,785.60 = 2,140.21 : x
  2. Step 2: Convert to fraction form
    3,468.79/4,785.60 = 2,140.21/x
  3. Step 3: Cross multiply
    3,468.79x = 4,785.60 × 2,140.21
  4. Step 4: Simplify right side
    3,468.79x = 10,242,188.98
  5. Step 5: Solve for x
    x = 10,242,188.98/3,468.79
  6. Step 6: Final answer
    x = 2,952.67

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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.