Home / 5,119.80-7,069.86-3,440.67

Finding the Fourth Proportional to 5,119.80, 7,069.86 and 3,440.67

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Solution

The fourth proportional to 5,119.80, 7,069.86 and 3,440.67 is: 4,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.80 : 7,069.86 = 3,440.67 : x
  2. Step 2: Convert to fraction form
    5,119.80/7,069.86 = 3,440.67/x
  3. Step 3: Cross multiply
    5,119.80x = 7,069.86 × 3,440.67
  4. Step 4: Simplify right side
    5,119.80x = 24,325,055.21
  5. Step 5: Solve for x
    x = 24,325,055.21/5,119.80
  6. Step 6: Final answer
    x = 4,751.17

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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.