Home / 7,770.15-11,658.30-2,840.17

Finding the Fourth Proportional to 7,770.15, 11,658.30 and 2,840.17

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Solution

The fourth proportional to 7,770.15, 11,658.30 and 2,840.17 is: 4,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.15 : 11,658.30 = 2,840.17 : x
  2. Step 2: Convert to fraction form
    7,770.15/11,658.30 = 2,840.17/x
  3. Step 3: Cross multiply
    7,770.15x = 11,658.30 × 2,840.17
  4. Step 4: Simplify right side
    7,770.15x = 33,111,553.91
  5. Step 5: Solve for x
    x = 33,111,553.91/7,770.15
  6. Step 6: Final answer
    x = 4,261.38

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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.