Home / 1,418.23-2,113.30-1,355.46

Finding the Fourth Proportional to 1,418.23, 2,113.30 and 1,355.46

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Solution

The fourth proportional to 1,418.23, 2,113.30 and 1,355.46 is: 2,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.23 : 2,113.30 = 1,355.46 : x
  2. Step 2: Convert to fraction form
    1,418.23/2,113.30 = 1,355.46/x
  3. Step 3: Cross multiply
    1,418.23x = 2,113.30 × 1,355.46
  4. Step 4: Simplify right side
    1,418.23x = 2,864,493.62
  5. Step 5: Solve for x
    x = 2,864,493.62/1,418.23
  6. Step 6: Final answer
    x = 2,019.77

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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.