Home / 7,130.44-10,696.26-2,628.72

Finding the Fourth Proportional to 7,130.44, 10,696.26 and 2,628.72

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Solution

The fourth proportional to 7,130.44, 10,696.26 and 2,628.72 is: 3,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.44 : 10,696.26 = 2,628.72 : x
  2. Step 2: Convert to fraction form
    7,130.44/10,696.26 = 2,628.72/x
  3. Step 3: Cross multiply
    7,130.44x = 10,696.26 × 2,628.72
  4. Step 4: Simplify right side
    7,130.44x = 28,117,472.59
  5. Step 5: Solve for x
    x = 28,117,472.59/7,130.44
  6. Step 6: Final answer
    x = 3,943.30

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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.