Home / 2,193.65-3,028.23-1,398.06

Finding the Fourth Proportional to 2,193.65, 3,028.23 and 1,398.06

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Solution

The fourth proportional to 2,193.65, 3,028.23 and 1,398.06 is: 1,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.65 : 3,028.23 = 1,398.06 : x
  2. Step 2: Convert to fraction form
    2,193.65/3,028.23 = 1,398.06/x
  3. Step 3: Cross multiply
    2,193.65x = 3,028.23 × 1,398.06
  4. Step 4: Simplify right side
    2,193.65x = 4,233,647.23
  5. Step 5: Solve for x
    x = 4,233,647.23/2,193.65
  6. Step 6: Final answer
    x = 1,929.96

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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.