Home / 7,778.32-11,667.45-1,934.93

Finding the Fourth Proportional to 7,778.32, 11,667.45 and 1,934.93

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Solution

The fourth proportional to 7,778.32, 11,667.45 and 1,934.93 is: 2,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.32 : 11,667.45 = 1,934.93 : x
  2. Step 2: Convert to fraction form
    7,778.32/11,667.45 = 1,934.93/x
  3. Step 3: Cross multiply
    7,778.32x = 11,667.45 × 1,934.93
  4. Step 4: Simplify right side
    7,778.32x = 22,575,674.70
  5. Step 5: Solve for x
    x = 22,575,674.70/7,778.32
  6. Step 6: Final answer
    x = 2,902.39

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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.