Home / 3,904.67-5,857.40-1,438.92

Finding the Fourth Proportional to 3,904.67, 5,857.40 and 1,438.92

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Solution

The fourth proportional to 3,904.67, 5,857.40 and 1,438.92 is: 2,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.67 : 5,857.40 = 1,438.92 : x
  2. Step 2: Convert to fraction form
    3,904.67/5,857.40 = 1,438.92/x
  3. Step 3: Cross multiply
    3,904.67x = 5,857.40 × 1,438.92
  4. Step 4: Simplify right side
    3,904.67x = 8,428,333.61
  5. Step 5: Solve for x
    x = 8,428,333.61/3,904.67
  6. Step 6: Final answer
    x = 2,158.53

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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.