Home / 3,316.15-4,971.29-2,147.05

Finding the Fourth Proportional to 3,316.15, 4,971.29 and 2,147.05

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Solution

The fourth proportional to 3,316.15, 4,971.29 and 2,147.05 is: 3,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.15 : 4,971.29 = 2,147.05 : x
  2. Step 2: Convert to fraction form
    3,316.15/4,971.29 = 2,147.05/x
  3. Step 3: Cross multiply
    3,316.15x = 4,971.29 × 2,147.05
  4. Step 4: Simplify right side
    3,316.15x = 10,673,585.03
  5. Step 5: Solve for x
    x = 10,673,585.03/3,316.15
  6. Step 6: Final answer
    x = 3,218.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.