Home / 1,478.24-2,218.32-1,190.24

Finding the Fourth Proportional to 1,478.24, 2,218.32 and 1,190.24

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Solution

The fourth proportional to 1,478.24, 2,218.32 and 1,190.24 is: 1,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.24 : 2,218.32 = 1,190.24 : x
  2. Step 2: Convert to fraction form
    1,478.24/2,218.32 = 1,190.24/x
  3. Step 3: Cross multiply
    1,478.24x = 2,218.32 × 1,190.24
  4. Step 4: Simplify right side
    1,478.24x = 2,640,333.20
  5. Step 5: Solve for x
    x = 2,640,333.20/1,478.24
  6. Step 6: Final answer
    x = 1,786.13

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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.