Home / 7,090.68-9,786.36-4,108.35

Finding the Fourth Proportional to 7,090.68, 9,786.36 and 4,108.35

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Solution

The fourth proportional to 7,090.68, 9,786.36 and 4,108.35 is: 5,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.68 : 9,786.36 = 4,108.35 : x
  2. Step 2: Convert to fraction form
    7,090.68/9,786.36 = 4,108.35/x
  3. Step 3: Cross multiply
    7,090.68x = 9,786.36 × 4,108.35
  4. Step 4: Simplify right side
    7,090.68x = 40,205,792.11
  5. Step 5: Solve for x
    x = 40,205,792.11/7,090.68
  6. Step 6: Final answer
    x = 5,670.23

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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.