Home / 5,854.80-8,779.32-2,156.88

Finding the Fourth Proportional to 5,854.80, 8,779.32 and 2,156.88

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Solution

The fourth proportional to 5,854.80, 8,779.32 and 2,156.88 is: 3,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.80 : 8,779.32 = 2,156.88 : x
  2. Step 2: Convert to fraction form
    5,854.80/8,779.32 = 2,156.88/x
  3. Step 3: Cross multiply
    5,854.80x = 8,779.32 × 2,156.88
  4. Step 4: Simplify right side
    5,854.80x = 18,935,939.72
  5. Step 5: Solve for x
    x = 18,935,939.72/5,854.80
  6. Step 6: Final answer
    x = 3,234.26

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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.