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Finding the Fourth Proportional to 4,898.68, 6,759.86 and 2,909.39

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Solution

The fourth proportional to 4,898.68, 6,759.86 and 2,909.39 is: 4,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,898.68 : 6,759.86 = 2,909.39 : x
  2. Step 2: Convert to fraction form
    4,898.68/6,759.86 = 2,909.39/x
  3. Step 3: Cross multiply
    4,898.68x = 6,759.86 × 2,909.39
  4. Step 4: Simplify right side
    4,898.68x = 19,667,020.74
  5. Step 5: Solve for x
    x = 19,667,020.74/4,898.68
  6. Step 6: Final answer
    x = 4,014.76

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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.