Home / 7,540.72-11,312.08-3,157.14

Finding the Fourth Proportional to 7,540.72, 11,312.08 and 3,157.14

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Solution

The fourth proportional to 7,540.72, 11,312.08 and 3,157.14 is: 4,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.72 : 11,312.08 = 3,157.14 : x
  2. Step 2: Convert to fraction form
    7,540.72/11,312.08 = 3,157.14/x
  3. Step 3: Cross multiply
    7,540.72x = 11,312.08 × 3,157.14
  4. Step 4: Simplify right side
    7,540.72x = 35,713,820.25
  5. Step 5: Solve for x
    x = 35,713,820.25/7,540.72
  6. Step 6: Final answer
    x = 4,736.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.