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Finding the Fourth Proportional to 4,953.40, 6,829.72 and 4,279.99

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Solution

The fourth proportional to 4,953.40, 6,829.72 and 4,279.99 is: 5,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.40 : 6,829.72 = 4,279.99 : x
  2. Step 2: Convert to fraction form
    4,953.40/6,829.72 = 4,279.99/x
  3. Step 3: Cross multiply
    4,953.40x = 6,829.72 × 4,279.99
  4. Step 4: Simplify right side
    4,953.40x = 29,231,118.33
  5. Step 5: Solve for x
    x = 29,231,118.33/4,953.40
  6. Step 6: Final answer
    x = 5,901.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.