Home / 3,782.00-5,216.98-3,140.31

Finding the Fourth Proportional to 3,782.00, 5,216.98 and 3,140.31

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Solution

The fourth proportional to 3,782.00, 5,216.98 and 3,140.31 is: 4,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.00 : 5,216.98 = 3,140.31 : x
  2. Step 2: Convert to fraction form
    3,782.00/5,216.98 = 3,140.31/x
  3. Step 3: Cross multiply
    3,782.00x = 5,216.98 × 3,140.31
  4. Step 4: Simplify right side
    3,782.00x = 16,382,908.38
  5. Step 5: Solve for x
    x = 16,382,908.38/3,782.00
  6. Step 6: Final answer
    x = 4,331.82

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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.