Home / 5,439.51-8,154.56-3,243.63

Finding the Fourth Proportional to 5,439.51, 8,154.56 and 3,243.63

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Solution

The fourth proportional to 5,439.51, 8,154.56 and 3,243.63 is: 4,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.51 : 8,154.56 = 3,243.63 : x
  2. Step 2: Convert to fraction form
    5,439.51/8,154.56 = 3,243.63/x
  3. Step 3: Cross multiply
    5,439.51x = 8,154.56 × 3,243.63
  4. Step 4: Simplify right side
    5,439.51x = 26,450,375.45
  5. Step 5: Solve for x
    x = 26,450,375.45/5,439.51
  6. Step 6: Final answer
    x = 4,862.64

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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.