Home / 7,021.99-10,534.56-2,639.49

Finding the Fourth Proportional to 7,021.99, 10,534.56 and 2,639.49

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Solution

The fourth proportional to 7,021.99, 10,534.56 and 2,639.49 is: 3,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.99 : 10,534.56 = 2,639.49 : x
  2. Step 2: Convert to fraction form
    7,021.99/10,534.56 = 2,639.49/x
  3. Step 3: Cross multiply
    7,021.99x = 10,534.56 × 2,639.49
  4. Step 4: Simplify right side
    7,021.99x = 27,805,816.37
  5. Step 5: Solve for x
    x = 27,805,816.37/7,021.99
  6. Step 6: Final answer
    x = 3,959.82

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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.