Home / 7,985.91-11,020.58-4,449.83

Finding the Fourth Proportional to 7,985.91, 11,020.58 and 4,449.83

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Solution

The fourth proportional to 7,985.91, 11,020.58 and 4,449.83 is: 6,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.91 : 11,020.58 = 4,449.83 : x
  2. Step 2: Convert to fraction form
    7,985.91/11,020.58 = 4,449.83/x
  3. Step 3: Cross multiply
    7,985.91x = 11,020.58 × 4,449.83
  4. Step 4: Simplify right side
    7,985.91x = 49,039,630.15
  5. Step 5: Solve for x
    x = 49,039,630.15/7,985.91
  6. Step 6: Final answer
    x = 6,140.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.