Home / 3,857.40-5,784.66-1,548.12

Finding the Fourth Proportional to 3,857.40, 5,784.66 and 1,548.12

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Solution

The fourth proportional to 3,857.40, 5,784.66 and 1,548.12 is: 2,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.40 : 5,784.66 = 1,548.12 : x
  2. Step 2: Convert to fraction form
    3,857.40/5,784.66 = 1,548.12/x
  3. Step 3: Cross multiply
    3,857.40x = 5,784.66 × 1,548.12
  4. Step 4: Simplify right side
    3,857.40x = 8,955,347.84
  5. Step 5: Solve for x
    x = 8,955,347.84/3,857.40
  6. Step 6: Final answer
    x = 2,321.60

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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.