Home / 2,730.20-4,088.10-1,995.80

Finding the Fourth Proportional to 2,730.20, 4,088.10 and 1,995.80

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Solution

The fourth proportional to 2,730.20, 4,088.10 and 1,995.80 is: 2,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.20 : 4,088.10 = 1,995.80 : x
  2. Step 2: Convert to fraction form
    2,730.20/4,088.10 = 1,995.80/x
  3. Step 3: Cross multiply
    2,730.20x = 4,088.10 × 1,995.80
  4. Step 4: Simplify right side
    2,730.20x = 8,159,029.98
  5. Step 5: Solve for x
    x = 8,159,029.98/2,730.20
  6. Step 6: Final answer
    x = 2,988.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.