Home / 2,947.86-4,419.63-1,486.22

Finding the Fourth Proportional to 2,947.86, 4,419.63 and 1,486.22

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Solution

The fourth proportional to 2,947.86, 4,419.63 and 1,486.22 is: 2,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.86 : 4,419.63 = 1,486.22 : x
  2. Step 2: Convert to fraction form
    2,947.86/4,419.63 = 1,486.22/x
  3. Step 3: Cross multiply
    2,947.86x = 4,419.63 × 1,486.22
  4. Step 4: Simplify right side
    2,947.86x = 6,568,520.40
  5. Step 5: Solve for x
    x = 6,568,520.40/2,947.86
  6. Step 6: Final answer
    x = 2,228.23

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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.