Home / 6,261.25-8,638.14-4,137.79

Finding the Fourth Proportional to 6,261.25, 8,638.14 and 4,137.79

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Solution

The fourth proportional to 6,261.25, 8,638.14 and 4,137.79 is: 5,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.25 : 8,638.14 = 4,137.79 : x
  2. Step 2: Convert to fraction form
    6,261.25/8,638.14 = 4,137.79/x
  3. Step 3: Cross multiply
    6,261.25x = 8,638.14 × 4,137.79
  4. Step 4: Simplify right side
    6,261.25x = 35,742,809.31
  5. Step 5: Solve for x
    x = 35,742,809.31/6,261.25
  6. Step 6: Final answer
    x = 5,708.57

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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.