Home / 2,125.73-2,933.78-1,628.19

Finding the Fourth Proportional to 2,125.73, 2,933.78 and 1,628.19

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Solution

The fourth proportional to 2,125.73, 2,933.78 and 1,628.19 is: 2,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.73 : 2,933.78 = 1,628.19 : x
  2. Step 2: Convert to fraction form
    2,125.73/2,933.78 = 1,628.19/x
  3. Step 3: Cross multiply
    2,125.73x = 2,933.78 × 1,628.19
  4. Step 4: Simplify right side
    2,125.73x = 4,776,751.26
  5. Step 5: Solve for x
    x = 4,776,751.26/2,125.73
  6. Step 6: Final answer
    x = 2,247.11

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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.