Home / 6,782.48-9,359.88-3,798.80

Finding the Fourth Proportional to 6,782.48, 9,359.88 and 3,798.80

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Solution

The fourth proportional to 6,782.48, 9,359.88 and 3,798.80 is: 5,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782.48 : 9,359.88 = 3,798.80 : x
  2. Step 2: Convert to fraction form
    6,782.48/9,359.88 = 3,798.80/x
  3. Step 3: Cross multiply
    6,782.48x = 9,359.88 × 3,798.80
  4. Step 4: Simplify right side
    6,782.48x = 35,556,312.14
  5. Step 5: Solve for x
    x = 35,556,312.14/6,782.48
  6. Step 6: Final answer
    x = 5,242.38

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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.