Home / 7,090.89-9,783.64-4,257.36

Finding the Fourth Proportional to 7,090.89, 9,783.64 and 4,257.36

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Solution

The fourth proportional to 7,090.89, 9,783.64 and 4,257.36 is: 5,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.89 : 9,783.64 = 4,257.36 : x
  2. Step 2: Convert to fraction form
    7,090.89/9,783.64 = 4,257.36/x
  3. Step 3: Cross multiply
    7,090.89x = 9,783.64 × 4,257.36
  4. Step 4: Simplify right side
    7,090.89x = 41,652,458.96
  5. Step 5: Solve for x
    x = 41,652,458.96/7,090.89
  6. Step 6: Final answer
    x = 5,874.08

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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.