Home / 8,701.78-13,054.30-2,858.72

Finding the Fourth Proportional to 8,701.78, 13,054.30 and 2,858.72

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Solution

The fourth proportional to 8,701.78, 13,054.30 and 2,858.72 is: 4,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.78 : 13,054.30 = 2,858.72 : x
  2. Step 2: Convert to fraction form
    8,701.78/13,054.30 = 2,858.72/x
  3. Step 3: Cross multiply
    8,701.78x = 13,054.30 × 2,858.72
  4. Step 4: Simplify right side
    8,701.78x = 37,318,588.50
  5. Step 5: Solve for x
    x = 37,318,588.50/8,701.78
  6. Step 6: Final answer
    x = 4,288.62

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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.