Home / 7,541.40-11,312.10-3,163.80

Finding the Fourth Proportional to 7,541.40, 11,312.10 and 3,163.80

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Solution

The fourth proportional to 7,541.40, 11,312.10 and 3,163.80 is: 4,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,541.40 : 11,312.10 = 3,163.80 : x
  2. Step 2: Convert to fraction form
    7,541.40/11,312.10 = 3,163.80/x
  3. Step 3: Cross multiply
    7,541.40x = 11,312.10 × 3,163.80
  4. Step 4: Simplify right side
    7,541.40x = 35,789,221.98
  5. Step 5: Solve for x
    x = 35,789,221.98/7,541.40
  6. Step 6: Final answer
    x = 4,745.70

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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.