Home / 3,720.08-5,133.48-2,228.12

Finding the Fourth Proportional to 3,720.08, 5,133.48 and 2,228.12

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Solution

The fourth proportional to 3,720.08, 5,133.48 and 2,228.12 is: 3,074.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.08 : 5,133.48 = 2,228.12 : x
  2. Step 2: Convert to fraction form
    3,720.08/5,133.48 = 2,228.12/x
  3. Step 3: Cross multiply
    3,720.08x = 5,133.48 × 2,228.12
  4. Step 4: Simplify right side
    3,720.08x = 11,438,009.46
  5. Step 5: Solve for x
    x = 11,438,009.46/3,720.08
  6. Step 6: Final answer
    x = 3,074.67

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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.