Home / 7,538.22-10,401.78-4,181.01

Finding the Fourth Proportional to 7,538.22, 10,401.78 and 4,181.01

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Solution

The fourth proportional to 7,538.22, 10,401.78 and 4,181.01 is: 5,769.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.22 : 10,401.78 = 4,181.01 : x
  2. Step 2: Convert to fraction form
    7,538.22/10,401.78 = 4,181.01/x
  3. Step 3: Cross multiply
    7,538.22x = 10,401.78 × 4,181.01
  4. Step 4: Simplify right side
    7,538.22x = 43,489,946.20
  5. Step 5: Solve for x
    x = 43,489,946.20/7,538.22
  6. Step 6: Final answer
    x = 5,769.26

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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.