Home / 4,748.40-7,122.87-1,974.96

Finding the Fourth Proportional to 4,748.40, 7,122.87 and 1,974.96

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Solution

The fourth proportional to 4,748.40, 7,122.87 and 1,974.96 is: 2,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.40 : 7,122.87 = 1,974.96 : x
  2. Step 2: Convert to fraction form
    4,748.40/7,122.87 = 1,974.96/x
  3. Step 3: Cross multiply
    4,748.40x = 7,122.87 × 1,974.96
  4. Step 4: Simplify right side
    4,748.40x = 14,067,383.34
  5. Step 5: Solve for x
    x = 14,067,383.34/4,748.40
  6. Step 6: Final answer
    x = 2,962.55

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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.