Home / 3,798.36-5,242.04-2,120.32

Finding the Fourth Proportional to 3,798.36, 5,242.04 and 2,120.32

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Solution

The fourth proportional to 3,798.36, 5,242.04 and 2,120.32 is: 2,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.36 : 5,242.04 = 2,120.32 : x
  2. Step 2: Convert to fraction form
    3,798.36/5,242.04 = 2,120.32/x
  3. Step 3: Cross multiply
    3,798.36x = 5,242.04 × 2,120.32
  4. Step 4: Simplify right side
    3,798.36x = 11,114,802.25
  5. Step 5: Solve for x
    x = 11,114,802.25/3,798.36
  6. Step 6: Final answer
    x = 2,926.21

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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.