Home / 6,971.18-9,620.23-3,784.47

Finding the Fourth Proportional to 6,971.18, 9,620.23 and 3,784.47

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Solution

The fourth proportional to 6,971.18, 9,620.23 and 3,784.47 is: 5,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.18 : 9,620.23 = 3,784.47 : x
  2. Step 2: Convert to fraction form
    6,971.18/9,620.23 = 3,784.47/x
  3. Step 3: Cross multiply
    6,971.18x = 9,620.23 × 3,784.47
  4. Step 4: Simplify right side
    6,971.18x = 36,407,471.83
  5. Step 5: Solve for x
    x = 36,407,471.83/6,971.18
  6. Step 6: Final answer
    x = 5,222.57

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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.