Home / 7,215.80-10,803.76-3,698.23

Finding the Fourth Proportional to 7,215.80, 10,803.76 and 3,698.23

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Solution

The fourth proportional to 7,215.80, 10,803.76 and 3,698.23 is: 5,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.80 : 10,803.76 = 3,698.23 : x
  2. Step 2: Convert to fraction form
    7,215.80/10,803.76 = 3,698.23/x
  3. Step 3: Cross multiply
    7,215.80x = 10,803.76 × 3,698.23
  4. Step 4: Simplify right side
    7,215.80x = 39,954,789.34
  5. Step 5: Solve for x
    x = 39,954,789.34/7,215.80
  6. Step 6: Final answer
    x = 5,537.13

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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.