Home / 7,130.75-10,696.08-1,936.62

Finding the Fourth Proportional to 7,130.75, 10,696.08 and 1,936.62

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Solution

The fourth proportional to 7,130.75, 10,696.08 and 1,936.62 is: 2,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.75 : 10,696.08 = 1,936.62 : x
  2. Step 2: Convert to fraction form
    7,130.75/10,696.08 = 1,936.62/x
  3. Step 3: Cross multiply
    7,130.75x = 10,696.08 × 1,936.62
  4. Step 4: Simplify right side
    7,130.75x = 20,714,242.45
  5. Step 5: Solve for x
    x = 20,714,242.45/7,130.75
  6. Step 6: Final answer
    x = 2,904.92

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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.