Home / 2,971.37-4,100.46-1,645.05

Finding the Fourth Proportional to 2,971.37, 4,100.46 and 1,645.05

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Solution

The fourth proportional to 2,971.37, 4,100.46 and 1,645.05 is: 2,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.37 : 4,100.46 = 1,645.05 : x
  2. Step 2: Convert to fraction form
    2,971.37/4,100.46 = 1,645.05/x
  3. Step 3: Cross multiply
    2,971.37x = 4,100.46 × 1,645.05
  4. Step 4: Simplify right side
    2,971.37x = 6,745,461.72
  5. Step 5: Solve for x
    x = 6,745,461.72/2,971.37
  6. Step 6: Final answer
    x = 2,270.15

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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.