Home / 2,806.48-3,873.78-1,628.08

Finding the Fourth Proportional to 2,806.48, 3,873.78 and 1,628.08

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Solution

The fourth proportional to 2,806.48, 3,873.78 and 1,628.08 is: 2,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.48 : 3,873.78 = 1,628.08 : x
  2. Step 2: Convert to fraction form
    2,806.48/3,873.78 = 1,628.08/x
  3. Step 3: Cross multiply
    2,806.48x = 3,873.78 × 1,628.08
  4. Step 4: Simplify right side
    2,806.48x = 6,306,823.74
  5. Step 5: Solve for x
    x = 6,306,823.74/2,806.48
  6. Step 6: Final answer
    x = 2,247.24

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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.