Home / 5,475.71-7,556.47-2,991.71

Finding the Fourth Proportional to 5,475.71, 7,556.47 and 2,991.71

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Solution

The fourth proportional to 5,475.71, 7,556.47 and 2,991.71 is: 4,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.71 : 7,556.47 = 2,991.71 : x
  2. Step 2: Convert to fraction form
    5,475.71/7,556.47 = 2,991.71/x
  3. Step 3: Cross multiply
    5,475.71x = 7,556.47 × 2,991.71
  4. Step 4: Simplify right side
    5,475.71x = 22,606,721.60
  5. Step 5: Solve for x
    x = 22,606,721.60/5,475.71
  6. Step 6: Final answer
    x = 4,128.55

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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.