Home / 7,059-9,741.42-3,915.84

Finding the Fourth Proportional to 7,059, 9,741.42 and 3,915.84

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Solution

The fourth proportional to 7,059, 9,741.42 and 3,915.84 is: 5,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059 : 9,741.42 = 3,915.84 : x
  2. Step 2: Convert to fraction form
    7,059/9,741.42 = 3,915.84/x
  3. Step 3: Cross multiply
    7,059x = 9,741.42 × 3,915.84
  4. Step 4: Simplify right side
    7,059x = 38,145,842.09
  5. Step 5: Solve for x
    x = 38,145,842.09/7,059
  6. Step 6: Final answer
    x = 5,403.86

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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.