Home / 3,665.44-5,057.04-2,421.28

Finding the Fourth Proportional to 3,665.44, 5,057.04 and 2,421.28

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Solution

The fourth proportional to 3,665.44, 5,057.04 and 2,421.28 is: 3,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.44 : 5,057.04 = 2,421.28 : x
  2. Step 2: Convert to fraction form
    3,665.44/5,057.04 = 2,421.28/x
  3. Step 3: Cross multiply
    3,665.44x = 5,057.04 × 2,421.28
  4. Step 4: Simplify right side
    3,665.44x = 12,244,509.81
  5. Step 5: Solve for x
    x = 12,244,509.81/3,665.44
  6. Step 6: Final answer
    x = 3,340.53

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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.