Home / 2,273.13-3,135.31-1,389.42

Finding the Fourth Proportional to 2,273.13, 3,135.31 and 1,389.42

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Solution

The fourth proportional to 2,273.13, 3,135.31 and 1,389.42 is: 1,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.13 : 3,135.31 = 1,389.42 : x
  2. Step 2: Convert to fraction form
    2,273.13/3,135.31 = 1,389.42/x
  3. Step 3: Cross multiply
    2,273.13x = 3,135.31 × 1,389.42
  4. Step 4: Simplify right side
    2,273.13x = 4,356,258.95
  5. Step 5: Solve for x
    x = 4,356,258.95/2,273.13
  6. Step 6: Final answer
    x = 1,916.41

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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.