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Finding the Fourth Proportional to 3,458.01, 4,770.70 and 1,945.22

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Solution

The fourth proportional to 3,458.01, 4,770.70 and 1,945.22 is: 2,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.01 : 4,770.70 = 1,945.22 : x
  2. Step 2: Convert to fraction form
    3,458.01/4,770.70 = 1,945.22/x
  3. Step 3: Cross multiply
    3,458.01x = 4,770.70 × 1,945.22
  4. Step 4: Simplify right side
    3,458.01x = 9,280,061.05
  5. Step 5: Solve for x
    x = 9,280,061.05/3,458.01
  6. Step 6: Final answer
    x = 2,683.64

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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.