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Finding the Fourth Proportional to 2,750.19, 4,125.27 and 670.18

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Solution

The fourth proportional to 2,750.19, 4,125.27 and 670.18 is: 1,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.19 : 4,125.27 = 670.18 : x
  2. Step 2: Convert to fraction form
    2,750.19/4,125.27 = 670.18/x
  3. Step 3: Cross multiply
    2,750.19x = 4,125.27 × 670.18
  4. Step 4: Simplify right side
    2,750.19x = 2,764,676.09
  5. Step 5: Solve for x
    x = 2,764,676.09/2,750.19
  6. Step 6: Final answer
    x = 1,005.27

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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.