Home / 8,702.28-13,055.06-2,859.22

Finding the Fourth Proportional to 8,702.28, 13,055.06 and 2,859.22

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Solution

The fourth proportional to 8,702.28, 13,055.06 and 2,859.22 is: 4,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.28 : 13,055.06 = 2,859.22 : x
  2. Step 2: Convert to fraction form
    8,702.28/13,055.06 = 2,859.22/x
  3. Step 3: Cross multiply
    8,702.28x = 13,055.06 × 2,859.22
  4. Step 4: Simplify right side
    8,702.28x = 37,327,288.65
  5. Step 5: Solve for x
    x = 37,327,288.65/8,702.28
  6. Step 6: Final answer
    x = 4,289.37

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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.