Home / 3,431.80-4,735.91-1,859.89

Finding the Fourth Proportional to 3,431.80, 4,735.91 and 1,859.89

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Solution

The fourth proportional to 3,431.80, 4,735.91 and 1,859.89 is: 2,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.80 : 4,735.91 = 1,859.89 : x
  2. Step 2: Convert to fraction form
    3,431.80/4,735.91 = 1,859.89/x
  3. Step 3: Cross multiply
    3,431.80x = 4,735.91 × 1,859.89
  4. Step 4: Simplify right side
    3,431.80x = 8,808,270.85
  5. Step 5: Solve for x
    x = 8,808,270.85/3,431.80
  6. Step 6: Final answer
    x = 2,566.66

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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.