Home / 7,731-11,581.56-5,090.58

Finding the Fourth Proportional to 7,731, 11,581.56 and 5,090.58

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Solution

The fourth proportional to 7,731, 11,581.56 and 5,090.58 is: 7,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731 : 11,581.56 = 5,090.58 : x
  2. Step 2: Convert to fraction form
    7,731/11,581.56 = 5,090.58/x
  3. Step 3: Cross multiply
    7,731x = 11,581.56 × 5,090.58
  4. Step 4: Simplify right side
    7,731x = 58,956,857.70
  5. Step 5: Solve for x
    x = 58,956,857.70/7,731
  6. Step 6: Final answer
    x = 7,626.03

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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.