Home / 2,111.08-2,913.44-1,325

Finding the Fourth Proportional to 2,111.08, 2,913.44 and 1,325

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Solution

The fourth proportional to 2,111.08, 2,913.44 and 1,325 is: 1,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.08 : 2,913.44 = 1,325 : x
  2. Step 2: Convert to fraction form
    2,111.08/2,913.44 = 1,325/x
  3. Step 3: Cross multiply
    2,111.08x = 2,913.44 × 1,325
  4. Step 4: Simplify right side
    2,111.08x = 3,860,308
  5. Step 5: Solve for x
    x = 3,860,308/2,111.08
  6. Step 6: Final answer
    x = 1,828.59

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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.