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Finding the Fourth Proportional to 6,953, 10,420.86 and 3,053.48

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Solution

The fourth proportional to 6,953, 10,420.86 and 3,053.48 is: 4,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,953 : 10,420.86 = 3,053.48 : x
  2. Step 2: Convert to fraction form
    6,953/10,420.86 = 3,053.48/x
  3. Step 3: Cross multiply
    6,953x = 10,420.86 × 3,053.48
  4. Step 4: Simplify right side
    6,953x = 31,819,887.59
  5. Step 5: Solve for x
    x = 31,819,887.59/6,953
  6. Step 6: Final answer
    x = 4,576.43

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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.