Home / 7,860.60-11,789.55-2,927.70

Finding the Fourth Proportional to 7,860.60, 11,789.55 and 2,927.70

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Solution

The fourth proportional to 7,860.60, 11,789.55 and 2,927.70 is: 4,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.60 : 11,789.55 = 2,927.70 : x
  2. Step 2: Convert to fraction form
    7,860.60/11,789.55 = 2,927.70/x
  3. Step 3: Cross multiply
    7,860.60x = 11,789.55 × 2,927.70
  4. Step 4: Simplify right side
    7,860.60x = 34,516,265.54
  5. Step 5: Solve for x
    x = 34,516,265.54/7,860.60
  6. Step 6: Final answer
    x = 4,391.05

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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.