Home / 2,235.30-3,360.15-2,105.70

Finding the Fourth Proportional to 2,235.30, 3,360.15 and 2,105.70

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Solution

The fourth proportional to 2,235.30, 3,360.15 and 2,105.70 is: 3,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.30 : 3,360.15 = 2,105.70 : x
  2. Step 2: Convert to fraction form
    2,235.30/3,360.15 = 2,105.70/x
  3. Step 3: Cross multiply
    2,235.30x = 3,360.15 × 2,105.70
  4. Step 4: Simplify right side
    2,235.30x = 7,075,467.86
  5. Step 5: Solve for x
    x = 7,075,467.86/2,235.30
  6. Step 6: Final answer
    x = 3,165.33

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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.