Home / 2,428.80-3,626.73-1,929.59

Finding the Fourth Proportional to 2,428.80, 3,626.73 and 1,929.59

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Solution

The fourth proportional to 2,428.80, 3,626.73 and 1,929.59 is: 2,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.80 : 3,626.73 = 1,929.59 : x
  2. Step 2: Convert to fraction form
    2,428.80/3,626.73 = 1,929.59/x
  3. Step 3: Cross multiply
    2,428.80x = 3,626.73 × 1,929.59
  4. Step 4: Simplify right side
    2,428.80x = 6,998,083.81
  5. Step 5: Solve for x
    x = 6,998,083.81/2,428.80
  6. Step 6: Final answer
    x = 2,881.29

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1.5x scale

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.