Home / 2,071.20-3,104.10-837.60

Finding the Fourth Proportional to 2,071.20, 3,104.10 and 837.60

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Solution

The fourth proportional to 2,071.20, 3,104.10 and 837.60 is: 1,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.20 : 3,104.10 = 837.60 : x
  2. Step 2: Convert to fraction form
    2,071.20/3,104.10 = 837.60/x
  3. Step 3: Cross multiply
    2,071.20x = 3,104.10 × 837.60
  4. Step 4: Simplify right side
    2,071.20x = 2,599,994.16
  5. Step 5: Solve for x
    x = 2,599,994.16/2,071.20
  6. Step 6: Final answer
    x = 1,255.31

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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.