Home / 5,705.40-8,558.10-4,138.05

Finding the Fourth Proportional to 5,705.40, 8,558.10 and 4,138.05

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Solution

The fourth proportional to 5,705.40, 8,558.10 and 4,138.05 is: 6,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.40 : 8,558.10 = 4,138.05 : x
  2. Step 2: Convert to fraction form
    5,705.40/8,558.10 = 4,138.05/x
  3. Step 3: Cross multiply
    5,705.40x = 8,558.10 × 4,138.05
  4. Step 4: Simplify right side
    5,705.40x = 35,413,845.71
  5. Step 5: Solve for x
    x = 35,413,845.71/5,705.40
  6. Step 6: Final answer
    x = 6,207.08

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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.