Home / 5,343.78-7,374.57-2,986.07

Finding the Fourth Proportional to 5,343.78, 7,374.57 and 2,986.07

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Solution

The fourth proportional to 5,343.78, 7,374.57 and 2,986.07 is: 4,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.78 : 7,374.57 = 2,986.07 : x
  2. Step 2: Convert to fraction form
    5,343.78/7,374.57 = 2,986.07/x
  3. Step 3: Cross multiply
    5,343.78x = 7,374.57 × 2,986.07
  4. Step 4: Simplify right side
    5,343.78x = 22,020,982.24
  5. Step 5: Solve for x
    x = 22,020,982.24/5,343.78
  6. Step 6: Final answer
    x = 4,120.86

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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.