Home / 4,885.12-7,327.88-1,422.36

Finding the Fourth Proportional to 4,885.12, 7,327.88 and 1,422.36

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Solution

The fourth proportional to 4,885.12, 7,327.88 and 1,422.36 is: 2,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.12 : 7,327.88 = 1,422.36 : x
  2. Step 2: Convert to fraction form
    4,885.12/7,327.88 = 1,422.36/x
  3. Step 3: Cross multiply
    4,885.12x = 7,327.88 × 1,422.36
  4. Step 4: Simplify right side
    4,885.12x = 10,422,883.40
  5. Step 5: Solve for x
    x = 10,422,883.40/4,885.12
  6. Step 6: Final answer
    x = 2,133.60

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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.