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Finding the Fourth Proportional to 5,779.56, 8,669.71 and 1,830.97

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Solution

The fourth proportional to 5,779.56, 8,669.71 and 1,830.97 is: 2,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.56 : 8,669.71 = 1,830.97 : x
  2. Step 2: Convert to fraction form
    5,779.56/8,669.71 = 1,830.97/x
  3. Step 3: Cross multiply
    5,779.56x = 8,669.71 × 1,830.97
  4. Step 4: Simplify right side
    5,779.56x = 15,873,935.57
  5. Step 5: Solve for x
    x = 15,873,935.57/5,779.56
  6. Step 6: Final answer
    x = 2,746.56

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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.