Home / 7,418.58-11,126.79-2,800.50

Finding the Fourth Proportional to 7,418.58, 11,126.79 and 2,800.50

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Solution

The fourth proportional to 7,418.58, 11,126.79 and 2,800.50 is: 4,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.58 : 11,126.79 = 2,800.50 : x
  2. Step 2: Convert to fraction form
    7,418.58/11,126.79 = 2,800.50/x
  3. Step 3: Cross multiply
    7,418.58x = 11,126.79 × 2,800.50
  4. Step 4: Simplify right side
    7,418.58x = 31,160,575.40
  5. Step 5: Solve for x
    x = 31,160,575.40/7,418.58
  6. Step 6: Final answer
    x = 4,200.34

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Double scale
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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.