Home / 2,455.36-3,388.32-1,407.44

Finding the Fourth Proportional to 2,455.36, 3,388.32 and 1,407.44

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Solution

The fourth proportional to 2,455.36, 3,388.32 and 1,407.44 is: 1,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.36 : 3,388.32 = 1,407.44 : x
  2. Step 2: Convert to fraction form
    2,455.36/3,388.32 = 1,407.44/x
  3. Step 3: Cross multiply
    2,455.36x = 3,388.32 × 1,407.44
  4. Step 4: Simplify right side
    2,455.36x = 4,768,857.10
  5. Step 5: Solve for x
    x = 4,768,857.10/2,455.36
  6. Step 6: Final answer
    x = 1,942.22

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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.