Home / 3,120.41-4,678.13-1,559.54

Finding the Fourth Proportional to 3,120.41, 4,678.13 and 1,559.54

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Solution

The fourth proportional to 3,120.41, 4,678.13 and 1,559.54 is: 2,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.41 : 4,678.13 = 1,559.54 : x
  2. Step 2: Convert to fraction form
    3,120.41/4,678.13 = 1,559.54/x
  3. Step 3: Cross multiply
    3,120.41x = 4,678.13 × 1,559.54
  4. Step 4: Simplify right side
    3,120.41x = 7,295,699.67
  5. Step 5: Solve for x
    x = 7,295,699.67/3,120.41
  6. Step 6: Final answer
    x = 2,338.06

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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.