Home / 2,730.80-3,763.50-1,983.45

Finding the Fourth Proportional to 2,730.80, 3,763.50 and 1,983.45

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Solution

The fourth proportional to 2,730.80, 3,763.50 and 1,983.45 is: 2,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.80 : 3,763.50 = 1,983.45 : x
  2. Step 2: Convert to fraction form
    2,730.80/3,763.50 = 1,983.45/x
  3. Step 3: Cross multiply
    2,730.80x = 3,763.50 × 1,983.45
  4. Step 4: Simplify right side
    2,730.80x = 7,464,714.08
  5. Step 5: Solve for x
    x = 7,464,714.08/2,730.80
  6. Step 6: Final answer
    x = 2,733.53

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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.