Home / 3,180.08-4,388.36-1,782.80

Finding the Fourth Proportional to 3,180.08, 4,388.36 and 1,782.80

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Solution

The fourth proportional to 3,180.08, 4,388.36 and 1,782.80 is: 2,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.08 : 4,388.36 = 1,782.80 : x
  2. Step 2: Convert to fraction form
    3,180.08/4,388.36 = 1,782.80/x
  3. Step 3: Cross multiply
    3,180.08x = 4,388.36 × 1,782.80
  4. Step 4: Simplify right side
    3,180.08x = 7,823,568.21
  5. Step 5: Solve for x
    x = 7,823,568.21/3,180.08
  6. Step 6: Final answer
    x = 2,460.18

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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.