Home / 7,555.21-11,321.28-3,170.28

Finding the Fourth Proportional to 7,555.21, 11,321.28 and 3,170.28

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Solution

The fourth proportional to 7,555.21, 11,321.28 and 3,170.28 is: 4,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.21 : 11,321.28 = 3,170.28 : x
  2. Step 2: Convert to fraction form
    7,555.21/11,321.28 = 3,170.28/x
  3. Step 3: Cross multiply
    7,555.21x = 11,321.28 × 3,170.28
  4. Step 4: Simplify right side
    7,555.21x = 35,891,555.10
  5. Step 5: Solve for x
    x = 35,891,555.10/7,555.21
  6. Step 6: Final answer
    x = 4,750.57

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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.