Home / 5,621.85-8,436.88-2,702.21

Finding the Fourth Proportional to 5,621.85, 8,436.88 and 2,702.21

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Solution

The fourth proportional to 5,621.85, 8,436.88 and 2,702.21 is: 4,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.85 : 8,436.88 = 2,702.21 : x
  2. Step 2: Convert to fraction form
    5,621.85/8,436.88 = 2,702.21/x
  3. Step 3: Cross multiply
    5,621.85x = 8,436.88 × 2,702.21
  4. Step 4: Simplify right side
    5,621.85x = 22,798,182.70
  5. Step 5: Solve for x
    x = 22,798,182.70/5,621.85
  6. Step 6: Final answer
    x = 4,055.28

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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.