Home / 3,720.10-5,133.24-2,228.08

Finding the Fourth Proportional to 3,720.10, 5,133.24 and 2,228.08

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Solution

The fourth proportional to 3,720.10, 5,133.24 and 2,228.08 is: 3,074.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.10 : 5,133.24 = 2,228.08 : x
  2. Step 2: Convert to fraction form
    3,720.10/5,133.24 = 2,228.08/x
  3. Step 3: Cross multiply
    3,720.10x = 5,133.24 × 2,228.08
  4. Step 4: Simplify right side
    3,720.10x = 11,437,269.38
  5. Step 5: Solve for x
    x = 11,437,269.38/3,720.10
  6. Step 6: Final answer
    x = 3,074.45

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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.