Home / 1,471.32-2,198.36-1,420.29

Finding the Fourth Proportional to 1,471.32, 2,198.36 and 1,420.29

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Solution

The fourth proportional to 1,471.32, 2,198.36 and 1,420.29 is: 2,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.32 : 2,198.36 = 1,420.29 : x
  2. Step 2: Convert to fraction form
    1,471.32/2,198.36 = 1,420.29/x
  3. Step 3: Cross multiply
    1,471.32x = 2,198.36 × 1,420.29
  4. Step 4: Simplify right side
    1,471.32x = 3,122,301.62
  5. Step 5: Solve for x
    x = 3,122,301.62/1,471.32
  6. Step 6: Final answer
    x = 2,122.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.