Home / 3,455.18-5,187.95-2,074.68

Finding the Fourth Proportional to 3,455.18, 5,187.95 and 2,074.68

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Solution

The fourth proportional to 3,455.18, 5,187.95 and 2,074.68 is: 3,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.18 : 5,187.95 = 2,074.68 : x
  2. Step 2: Convert to fraction form
    3,455.18/5,187.95 = 2,074.68/x
  3. Step 3: Cross multiply
    3,455.18x = 5,187.95 × 2,074.68
  4. Step 4: Simplify right side
    3,455.18x = 10,763,325.73
  5. Step 5: Solve for x
    x = 10,763,325.73/3,455.18
  6. Step 6: Final answer
    x = 3,115.13

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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.