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Finding the Fourth Proportional to 4,898.76, 6,759.72 and 2,909.40

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Solution

The fourth proportional to 4,898.76, 6,759.72 and 2,909.40 is: 4,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,898.76 : 6,759.72 = 2,909.40 : x
  2. Step 2: Convert to fraction form
    4,898.76/6,759.72 = 2,909.40/x
  3. Step 3: Cross multiply
    4,898.76x = 6,759.72 × 2,909.40
  4. Step 4: Simplify right side
    4,898.76x = 19,666,729.37
  5. Step 5: Solve for x
    x = 19,666,729.37/4,898.76
  6. Step 6: Final answer
    x = 4,014.63

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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.