Home / 3,260.85-4,887.63-1,409.19

Finding the Fourth Proportional to 3,260.85, 4,887.63 and 1,409.19

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Solution

The fourth proportional to 3,260.85, 4,887.63 and 1,409.19 is: 2,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.85 : 4,887.63 = 1,409.19 : x
  2. Step 2: Convert to fraction form
    3,260.85/4,887.63 = 1,409.19/x
  3. Step 3: Cross multiply
    3,260.85x = 4,887.63 × 1,409.19
  4. Step 4: Simplify right side
    3,260.85x = 6,887,599.32
  5. Step 5: Solve for x
    x = 6,887,599.32/3,260.85
  6. Step 6: Final answer
    x = 2,112.21

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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.