Home / 3,180.18-4,388.64-1,782.96

Finding the Fourth Proportional to 3,180.18, 4,388.64 and 1,782.96

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Solution

The fourth proportional to 3,180.18, 4,388.64 and 1,782.96 is: 2,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.18 : 4,388.64 = 1,782.96 : x
  2. Step 2: Convert to fraction form
    3,180.18/4,388.64 = 1,782.96/x
  3. Step 3: Cross multiply
    3,180.18x = 4,388.64 × 1,782.96
  4. Step 4: Simplify right side
    3,180.18x = 7,824,769.57
  5. Step 5: Solve for x
    x = 7,824,769.57/3,180.18
  6. Step 6: Final answer
    x = 2,460.48

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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.