Home / 2,623.54-3,620.40-1,489.18

Finding the Fourth Proportional to 2,623.54, 3,620.40 and 1,489.18

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Solution

The fourth proportional to 2,623.54, 3,620.40 and 1,489.18 is: 2,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.54 : 3,620.40 = 1,489.18 : x
  2. Step 2: Convert to fraction form
    2,623.54/3,620.40 = 1,489.18/x
  3. Step 3: Cross multiply
    2,623.54x = 3,620.40 × 1,489.18
  4. Step 4: Simplify right side
    2,623.54x = 5,391,427.27
  5. Step 5: Solve for x
    x = 5,391,427.27/2,623.54
  6. Step 6: Final answer
    x = 2,055.02

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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.