Home / 7,220.38-10,810.58-3,702.80

Finding the Fourth Proportional to 7,220.38, 10,810.58 and 3,702.80

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Solution

The fourth proportional to 7,220.38, 10,810.58 and 3,702.80 is: 5,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.38 : 10,810.58 = 3,702.80 : x
  2. Step 2: Convert to fraction form
    7,220.38/10,810.58 = 3,702.80/x
  3. Step 3: Cross multiply
    7,220.38x = 10,810.58 × 3,702.80
  4. Step 4: Simplify right side
    7,220.38x = 40,029,415.62
  5. Step 5: Solve for x
    x = 40,029,415.62/7,220.38
  6. Step 6: Final answer
    x = 5,543.95

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1.5x scale

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.