Home / 6,261.10-8,638.90-3,742.79

Finding the Fourth Proportional to 6,261.10, 8,638.90 and 3,742.79

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Solution

The fourth proportional to 6,261.10, 8,638.90 and 3,742.79 is: 5,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.10 : 8,638.90 = 3,742.79 : x
  2. Step 2: Convert to fraction form
    6,261.10/8,638.90 = 3,742.79/x
  3. Step 3: Cross multiply
    6,261.10x = 8,638.90 × 3,742.79
  4. Step 4: Simplify right side
    6,261.10x = 32,333,588.53
  5. Step 5: Solve for x
    x = 32,333,588.53/6,261.10
  6. Step 6: Final answer
    x = 5,164.20

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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.