Home / 2,303.70-3,455.55-1,939.20

Finding the Fourth Proportional to 2,303.70, 3,455.55 and 1,939.20

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Solution

The fourth proportional to 2,303.70, 3,455.55 and 1,939.20 is: 2,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.70 : 3,455.55 = 1,939.20 : x
  2. Step 2: Convert to fraction form
    2,303.70/3,455.55 = 1,939.20/x
  3. Step 3: Cross multiply
    2,303.70x = 3,455.55 × 1,939.20
  4. Step 4: Simplify right side
    2,303.70x = 6,701,002.56
  5. Step 5: Solve for x
    x = 6,701,002.56/2,303.70
  6. Step 6: Final answer
    x = 2,908.80

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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.