Home / 3,112.48-4,294.88-1,786.24

Finding the Fourth Proportional to 3,112.48, 4,294.88 and 1,786.24

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Solution

The fourth proportional to 3,112.48, 4,294.88 and 1,786.24 is: 2,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.48 : 4,294.88 = 1,786.24 : x
  2. Step 2: Convert to fraction form
    3,112.48/4,294.88 = 1,786.24/x
  3. Step 3: Cross multiply
    3,112.48x = 4,294.88 × 1,786.24
  4. Step 4: Simplify right side
    3,112.48x = 7,671,686.45
  5. Step 5: Solve for x
    x = 7,671,686.45/3,112.48
  6. Step 6: Final answer
    x = 2,464.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.