Home / 7,485.40-11,235.00-3,790.22

Finding the Fourth Proportional to 7,485.40, 11,235.00 and 3,790.22

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Solution

The fourth proportional to 7,485.40, 11,235.00 and 3,790.22 is: 5,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.40 : 11,235.00 = 3,790.22 : x
  2. Step 2: Convert to fraction form
    7,485.40/11,235.00 = 3,790.22/x
  3. Step 3: Cross multiply
    7,485.40x = 11,235.00 × 3,790.22
  4. Step 4: Simplify right side
    7,485.40x = 42,583,111.34
  5. Step 5: Solve for x
    x = 42,583,111.34/7,485.40
  6. Step 6: Final answer
    x = 5,688.83

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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.