Home / 6,556.80-9,828.72-2,659.20

Finding the Fourth Proportional to 6,556.80, 9,828.72 and 2,659.20

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Solution

The fourth proportional to 6,556.80, 9,828.72 and 2,659.20 is: 3,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,556.80 : 9,828.72 = 2,659.20 : x
  2. Step 2: Convert to fraction form
    6,556.80/9,828.72 = 2,659.20/x
  3. Step 3: Cross multiply
    6,556.80x = 9,828.72 × 2,659.20
  4. Step 4: Simplify right side
    6,556.80x = 26,136,532.22
  5. Step 5: Solve for x
    x = 26,136,532.22/6,556.80
  6. Step 6: Final answer
    x = 3,986.17

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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.