Home / 2,071.20-3,104.70-1,029.60

Finding the Fourth Proportional to 2,071.20, 3,104.70 and 1,029.60

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Solution

The fourth proportional to 2,071.20, 3,104.70 and 1,029.60 is: 1,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.20 : 3,104.70 = 1,029.60 : x
  2. Step 2: Convert to fraction form
    2,071.20/3,104.70 = 1,029.60/x
  3. Step 3: Cross multiply
    2,071.20x = 3,104.70 × 1,029.60
  4. Step 4: Simplify right side
    2,071.20x = 3,196,599.12
  5. Step 5: Solve for x
    x = 3,196,599.12/2,071.20
  6. Step 6: Final answer
    x = 1,543.36

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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.