Home / 4,207.43-6,312.05-1,285.64

Finding the Fourth Proportional to 4,207.43, 6,312.05 and 1,285.64

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Solution

The fourth proportional to 4,207.43, 6,312.05 and 1,285.64 is: 1,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.43 : 6,312.05 = 1,285.64 : x
  2. Step 2: Convert to fraction form
    4,207.43/6,312.05 = 1,285.64/x
  3. Step 3: Cross multiply
    4,207.43x = 6,312.05 × 1,285.64
  4. Step 4: Simplify right side
    4,207.43x = 8,115,023.96
  5. Step 5: Solve for x
    x = 8,115,023.96/4,207.43
  6. Step 6: Final answer
    x = 1,928.74

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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.