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Finding the Fourth Proportional to 3,355.05, 5,030.95 and 1,406.73

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Solution

The fourth proportional to 3,355.05, 5,030.95 and 1,406.73 is: 2,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.05 : 5,030.95 = 1,406.73 : x
  2. Step 2: Convert to fraction form
    3,355.05/5,030.95 = 1,406.73/x
  3. Step 3: Cross multiply
    3,355.05x = 5,030.95 × 1,406.73
  4. Step 4: Simplify right side
    3,355.05x = 7,077,181.26
  5. Step 5: Solve for x
    x = 7,077,181.26/3,355.05
  6. Step 6: Final answer
    x = 2,109.41

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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.