Home / 3,124.44-4,311.72-1,798.40

Finding the Fourth Proportional to 3,124.44, 4,311.72 and 1,798.40

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Solution

The fourth proportional to 3,124.44, 4,311.72 and 1,798.40 is: 2,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.44 : 4,311.72 = 1,798.40 : x
  2. Step 2: Convert to fraction form
    3,124.44/4,311.72 = 1,798.40/x
  3. Step 3: Cross multiply
    3,124.44x = 4,311.72 × 1,798.40
  4. Step 4: Simplify right side
    3,124.44x = 7,754,208.03
  5. Step 5: Solve for x
    x = 7,754,208.03/3,124.44
  6. Step 6: Final answer
    x = 2,481.79

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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.