Home / 7,485.16-11,221.60-3,100.24

Finding the Fourth Proportional to 7,485.16, 11,221.60 and 3,100.24

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Solution

The fourth proportional to 7,485.16, 11,221.60 and 3,100.24 is: 4,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.16 : 11,221.60 = 3,100.24 : x
  2. Step 2: Convert to fraction form
    7,485.16/11,221.60 = 3,100.24/x
  3. Step 3: Cross multiply
    7,485.16x = 11,221.60 × 3,100.24
  4. Step 4: Simplify right side
    7,485.16x = 34,789,653.18
  5. Step 5: Solve for x
    x = 34,789,653.18/7,485.16
  6. Step 6: Final answer
    x = 4,647.82

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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.