Home / 7,345.39-11,022.12-3,185.43

Finding the Fourth Proportional to 7,345.39, 11,022.12 and 3,185.43

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Solution

The fourth proportional to 7,345.39, 11,022.12 and 3,185.43 is: 4,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.39 : 11,022.12 = 3,185.43 : x
  2. Step 2: Convert to fraction form
    7,345.39/11,022.12 = 3,185.43/x
  3. Step 3: Cross multiply
    7,345.39x = 11,022.12 × 3,185.43
  4. Step 4: Simplify right side
    7,345.39x = 35,110,191.71
  5. Step 5: Solve for x
    x = 35,110,191.71/7,345.39
  6. Step 6: Final answer
    x = 4,779.89

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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.