Home / 7,852.50-11,778.76-2,658.78

Finding the Fourth Proportional to 7,852.50, 11,778.76 and 2,658.78

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Solution

The fourth proportional to 7,852.50, 11,778.76 and 2,658.78 is: 3,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.50 : 11,778.76 = 2,658.78 : x
  2. Step 2: Convert to fraction form
    7,852.50/11,778.76 = 2,658.78/x
  3. Step 3: Cross multiply
    7,852.50x = 11,778.76 × 2,658.78
  4. Step 4: Simplify right side
    7,852.50x = 31,317,131.51
  5. Step 5: Solve for x
    x = 31,317,131.51/7,852.50
  6. Step 6: Final answer
    x = 3,988.17

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Similar ratio
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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.