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Finding the Fourth Proportional to 7,245.88, 10,858.18 and 4,281.28

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Solution

The fourth proportional to 7,245.88, 10,858.18 and 4,281.28 is: 6,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.88 : 10,858.18 = 4,281.28 : x
  2. Step 2: Convert to fraction form
    7,245.88/10,858.18 = 4,281.28/x
  3. Step 3: Cross multiply
    7,245.88x = 10,858.18 × 4,281.28
  4. Step 4: Simplify right side
    7,245.88x = 46,486,908.87
  5. Step 5: Solve for x
    x = 46,486,908.87/7,245.88
  6. Step 6: Final answer
    x = 6,415.63

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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.