Home / 5,215.03-7,195.53-2,975.69

Finding the Fourth Proportional to 5,215.03, 7,195.53 and 2,975.69

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Solution

The fourth proportional to 5,215.03, 7,195.53 and 2,975.69 is: 4,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.03 : 7,195.53 = 2,975.69 : x
  2. Step 2: Convert to fraction form
    5,215.03/7,195.53 = 2,975.69/x
  3. Step 3: Cross multiply
    5,215.03x = 7,195.53 × 2,975.69
  4. Step 4: Simplify right side
    5,215.03x = 21,411,655.34
  5. Step 5: Solve for x
    x = 21,411,655.34/5,215.03
  6. Step 6: Final answer
    x = 4,105.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.