Home / 5,122.36-7,069.53-2,884.67

Finding the Fourth Proportional to 5,122.36, 7,069.53 and 2,884.67

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Solution

The fourth proportional to 5,122.36, 7,069.53 and 2,884.67 is: 3,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.36 : 7,069.53 = 2,884.67 : x
  2. Step 2: Convert to fraction form
    5,122.36/7,069.53 = 2,884.67/x
  3. Step 3: Cross multiply
    5,122.36x = 7,069.53 × 2,884.67
  4. Step 4: Simplify right side
    5,122.36x = 20,393,261.11
  5. Step 5: Solve for x
    x = 20,393,261.11/5,122.36
  6. Step 6: Final answer
    x = 3,981.22

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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.