Home / 2,219.32-3,328.64-1,395.08

Finding the Fourth Proportional to 2,219.32, 3,328.64 and 1,395.08

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Solution

The fourth proportional to 2,219.32, 3,328.64 and 1,395.08 is: 2,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.32 : 3,328.64 = 1,395.08 : x
  2. Step 2: Convert to fraction form
    2,219.32/3,328.64 = 1,395.08/x
  3. Step 3: Cross multiply
    2,219.32x = 3,328.64 × 1,395.08
  4. Step 4: Simplify right side
    2,219.32x = 4,643,719.09
  5. Step 5: Solve for x
    x = 4,643,719.09/2,219.32
  6. Step 6: Final answer
    x = 2,092.41

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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.