Home / 2,319.78-3,201.36-1,325.22

Finding the Fourth Proportional to 2,319.78, 3,201.36 and 1,325.22

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Solution

The fourth proportional to 2,319.78, 3,201.36 and 1,325.22 is: 1,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.78 : 3,201.36 = 1,325.22 : x
  2. Step 2: Convert to fraction form
    2,319.78/3,201.36 = 1,325.22/x
  3. Step 3: Cross multiply
    2,319.78x = 3,201.36 × 1,325.22
  4. Step 4: Simplify right side
    2,319.78x = 4,242,506.30
  5. Step 5: Solve for x
    x = 4,242,506.30/2,319.78
  6. Step 6: Final answer
    x = 1,828.84

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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.