Home / 2,623.40-3,619.62-1,628.60

Finding the Fourth Proportional to 2,623.40, 3,619.62 and 1,628.60

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Solution

The fourth proportional to 2,623.40, 3,619.62 and 1,628.60 is: 2,247.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.40 : 3,619.62 = 1,628.60 : x
  2. Step 2: Convert to fraction form
    2,623.40/3,619.62 = 1,628.60/x
  3. Step 3: Cross multiply
    2,623.40x = 3,619.62 × 1,628.60
  4. Step 4: Simplify right side
    2,623.40x = 5,894,913.13
  5. Step 5: Solve for x
    x = 5,894,913.13/2,623.40
  6. Step 6: Final answer
    x = 2,247.05

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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.