Home / 7,090.44-9,783.18-4,106.09

Finding the Fourth Proportional to 7,090.44, 9,783.18 and 4,106.09

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Solution

The fourth proportional to 7,090.44, 9,783.18 and 4,106.09 is: 5,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.44 : 9,783.18 = 4,106.09 : x
  2. Step 2: Convert to fraction form
    7,090.44/9,783.18 = 4,106.09/x
  3. Step 3: Cross multiply
    7,090.44x = 9,783.18 × 4,106.09
  4. Step 4: Simplify right side
    7,090.44x = 40,170,642.02
  5. Step 5: Solve for x
    x = 40,170,642.02/7,090.44
  6. Step 6: Final answer
    x = 5,665.47

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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.