Home / 2,428.95-3,351.38-1,381.59

Finding the Fourth Proportional to 2,428.95, 3,351.38 and 1,381.59

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Solution

The fourth proportional to 2,428.95, 3,351.38 and 1,381.59 is: 1,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.95 : 3,351.38 = 1,381.59 : x
  2. Step 2: Convert to fraction form
    2,428.95/3,351.38 = 1,381.59/x
  3. Step 3: Cross multiply
    2,428.95x = 3,351.38 × 1,381.59
  4. Step 4: Simplify right side
    2,428.95x = 4,630,226.19
  5. Step 5: Solve for x
    x = 4,630,226.19/2,428.95
  6. Step 6: Final answer
    x = 1,906.27

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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.