Home / 7,084.95-9,777.56-4,100.21

Finding the Fourth Proportional to 7,084.95, 9,777.56 and 4,100.21

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Solution

The fourth proportional to 7,084.95, 9,777.56 and 4,100.21 is: 5,658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.95 : 9,777.56 = 4,100.21 : x
  2. Step 2: Convert to fraction form
    7,084.95/9,777.56 = 4,100.21/x
  3. Step 3: Cross multiply
    7,084.95x = 9,777.56 × 4,100.21
  4. Step 4: Simplify right side
    7,084.95x = 40,090,083.98
  5. Step 5: Solve for x
    x = 40,090,083.98/7,084.95
  6. Step 6: Final answer
    x = 5,658.49

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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.