Home / 7,790.83-11,686.26-1,947.44

Finding the Fourth Proportional to 7,790.83, 11,686.26 and 1,947.44

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Solution

The fourth proportional to 7,790.83, 11,686.26 and 1,947.44 is: 2,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.83 : 11,686.26 = 1,947.44 : x
  2. Step 2: Convert to fraction form
    7,790.83/11,686.26 = 1,947.44/x
  3. Step 3: Cross multiply
    7,790.83x = 11,686.26 × 1,947.44
  4. Step 4: Simplify right side
    7,790.83x = 22,758,222.01
  5. Step 5: Solve for x
    x = 22,758,222.01/7,790.83
  6. Step 6: Final answer
    x = 2,921.16

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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.