Home / 8,702.28-13,055.04-2,859.30

Finding the Fourth Proportional to 8,702.28, 13,055.04 and 2,859.30

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Solution

The fourth proportional to 8,702.28, 13,055.04 and 2,859.30 is: 4,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.28 : 13,055.04 = 2,859.30 : x
  2. Step 2: Convert to fraction form
    8,702.28/13,055.04 = 2,859.30/x
  3. Step 3: Cross multiply
    8,702.28x = 13,055.04 × 2,859.30
  4. Step 4: Simplify right side
    8,702.28x = 37,328,275.87
  5. Step 5: Solve for x
    x = 37,328,275.87/8,702.28
  6. Step 6: Final answer
    x = 4,289.48

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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.