Home / 7,862.21-11,789.68-2,930.53

Finding the Fourth Proportional to 7,862.21, 11,789.68 and 2,930.53

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Solution

The fourth proportional to 7,862.21, 11,789.68 and 2,930.53 is: 4,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.21 : 11,789.68 = 2,930.53 : x
  2. Step 2: Convert to fraction form
    7,862.21/11,789.68 = 2,930.53/x
  3. Step 3: Cross multiply
    7,862.21x = 11,789.68 × 2,930.53
  4. Step 4: Simplify right side
    7,862.21x = 34,549,993.49
  5. Step 5: Solve for x
    x = 34,549,993.49/7,862.21
  6. Step 6: Final answer
    x = 4,394.44

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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.