Home / 2,235.67-3,083.20-1,396.45

Finding the Fourth Proportional to 2,235.67, 3,083.20 and 1,396.45

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Solution

The fourth proportional to 2,235.67, 3,083.20 and 1,396.45 is: 1,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.67 : 3,083.20 = 1,396.45 : x
  2. Step 2: Convert to fraction form
    2,235.67/3,083.20 = 1,396.45/x
  3. Step 3: Cross multiply
    2,235.67x = 3,083.20 × 1,396.45
  4. Step 4: Simplify right side
    2,235.67x = 4,305,534.64
  5. Step 5: Solve for x
    x = 4,305,534.64/2,235.67
  6. Step 6: Final answer
    x = 1,925.84

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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.