Home / 7,537.10-11,305.47-1,990.83

Finding the Fourth Proportional to 7,537.10, 11,305.47 and 1,990.83

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Solution

The fourth proportional to 7,537.10, 11,305.47 and 1,990.83 is: 2,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,537.10 : 11,305.47 = 1,990.83 : x
  2. Step 2: Convert to fraction form
    7,537.10/11,305.47 = 1,990.83/x
  3. Step 3: Cross multiply
    7,537.10x = 11,305.47 × 1,990.83
  4. Step 4: Simplify right side
    7,537.10x = 22,507,218.98
  5. Step 5: Solve for x
    x = 22,507,218.98/7,537.10
  6. Step 6: Final answer
    x = 2,986.19

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Double scale
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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.