Home / 7,084.80-9,776.34-4,100.04

Finding the Fourth Proportional to 7,084.80, 9,776.34 and 4,100.04

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Solution

The fourth proportional to 7,084.80, 9,776.34 and 4,100.04 is: 5,657.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.80 : 9,776.34 = 4,100.04 : x
  2. Step 2: Convert to fraction form
    7,084.80/9,776.34 = 4,100.04/x
  3. Step 3: Cross multiply
    7,084.80x = 9,776.34 × 4,100.04
  4. Step 4: Simplify right side
    7,084.80x = 40,083,385.05
  5. Step 5: Solve for x
    x = 40,083,385.05/7,084.80
  6. Step 6: Final answer
    x = 5,657.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.