Home / 7,130.21-10,696.79-2,199.74

Finding the Fourth Proportional to 7,130.21, 10,696.79 and 2,199.74

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Solution

The fourth proportional to 7,130.21, 10,696.79 and 2,199.74 is: 3,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.21 : 10,696.79 = 2,199.74 : x
  2. Step 2: Convert to fraction form
    7,130.21/10,696.79 = 2,199.74/x
  3. Step 3: Cross multiply
    7,130.21x = 10,696.79 × 2,199.74
  4. Step 4: Simplify right side
    7,130.21x = 23,530,108.85
  5. Step 5: Solve for x
    x = 23,530,108.85/7,130.21
  6. Step 6: Final answer
    x = 3,300.06

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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.