Home / 2,880.03-3,976.77-1,819.47

Finding the Fourth Proportional to 2,880.03, 3,976.77 and 1,819.47

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Solution

The fourth proportional to 2,880.03, 3,976.77 and 1,819.47 is: 2,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.03 : 3,976.77 = 1,819.47 : x
  2. Step 2: Convert to fraction form
    2,880.03/3,976.77 = 1,819.47/x
  3. Step 3: Cross multiply
    2,880.03x = 3,976.77 × 1,819.47
  4. Step 4: Simplify right side
    2,880.03x = 7,235,613.71
  5. Step 5: Solve for x
    x = 7,235,613.71/2,880.03
  6. Step 6: Final answer
    x = 2,512.34

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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.