Home / 7,021.79-10,529.75-2,858.99

Finding the Fourth Proportional to 7,021.79, 10,529.75 and 2,858.99

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Solution

The fourth proportional to 7,021.79, 10,529.75 and 2,858.99 is: 4,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.79 : 10,529.75 = 2,858.99 : x
  2. Step 2: Convert to fraction form
    7,021.79/10,529.75 = 2,858.99/x
  3. Step 3: Cross multiply
    7,021.79x = 10,529.75 × 2,858.99
  4. Step 4: Simplify right side
    7,021.79x = 30,104,383.01
  5. Step 5: Solve for x
    x = 30,104,383.01/7,021.79
  6. Step 6: Final answer
    x = 4,287.28

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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.