Home / 5,475.81-7,556.62-2,991.81

Finding the Fourth Proportional to 5,475.81, 7,556.62 and 2,991.81

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Solution

The fourth proportional to 5,475.81, 7,556.62 and 2,991.81 is: 4,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.81 : 7,556.62 = 2,991.81 : x
  2. Step 2: Convert to fraction form
    5,475.81/7,556.62 = 2,991.81/x
  3. Step 3: Cross multiply
    5,475.81x = 7,556.62 × 2,991.81
  4. Step 4: Simplify right side
    5,475.81x = 22,607,971.28
  5. Step 5: Solve for x
    x = 22,607,971.28/5,475.81
  6. Step 6: Final answer
    x = 4,128.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.