Home / 3,103.50-4,655.22-1,129.12

Finding the Fourth Proportional to 3,103.50, 4,655.22 and 1,129.12

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Solution

The fourth proportional to 3,103.50, 4,655.22 and 1,129.12 is: 1,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.50 : 4,655.22 = 1,129.12 : x
  2. Step 2: Convert to fraction form
    3,103.50/4,655.22 = 1,129.12/x
  3. Step 3: Cross multiply
    3,103.50x = 4,655.22 × 1,129.12
  4. Step 4: Simplify right side
    3,103.50x = 5,256,302.01
  5. Step 5: Solve for x
    x = 5,256,302.01/3,103.50
  6. Step 6: Final answer
    x = 1,693.67

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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.