Home / 3,137.46-4,329.62-1,811.39

Finding the Fourth Proportional to 3,137.46, 4,329.62 and 1,811.39

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Solution

The fourth proportional to 3,137.46, 4,329.62 and 1,811.39 is: 2,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.46 : 4,329.62 = 1,811.39 : x
  2. Step 2: Convert to fraction form
    3,137.46/4,329.62 = 1,811.39/x
  3. Step 3: Cross multiply
    3,137.46x = 4,329.62 × 1,811.39
  4. Step 4: Simplify right side
    3,137.46x = 7,842,599.67
  5. Step 5: Solve for x
    x = 7,842,599.67/3,137.46
  6. Step 6: Final answer
    x = 2,499.67

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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.