Home / 2,556.36-3,832.79-890.06

Finding the Fourth Proportional to 2,556.36, 3,832.79 and 890.06

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Solution

The fourth proportional to 2,556.36, 3,832.79 and 890.06 is: 1,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.36 : 3,832.79 = 890.06 : x
  2. Step 2: Convert to fraction form
    2,556.36/3,832.79 = 890.06/x
  3. Step 3: Cross multiply
    2,556.36x = 3,832.79 × 890.06
  4. Step 4: Simplify right side
    2,556.36x = 3,411,389.45
  5. Step 5: Solve for x
    x = 3,411,389.45/2,556.36
  6. Step 6: Final answer
    x = 1,334.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.