Home / 2,835.80-3,905.34-2,048.60

Finding the Fourth Proportional to 2,835.80, 3,905.34 and 2,048.60

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Solution

The fourth proportional to 2,835.80, 3,905.34 and 2,048.60 is: 2,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.80 : 3,905.34 = 2,048.60 : x
  2. Step 2: Convert to fraction form
    2,835.80/3,905.34 = 2,048.60/x
  3. Step 3: Cross multiply
    2,835.80x = 3,905.34 × 2,048.60
  4. Step 4: Simplify right side
    2,835.80x = 8,000,479.52
  5. Step 5: Solve for x
    x = 8,000,479.52/2,835.80
  6. Step 6: Final answer
    x = 2,821.24

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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.