Home / 4,909.39-6,774.99-2,671.28

Finding the Fourth Proportional to 4,909.39, 6,774.99 and 2,671.28

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Solution

The fourth proportional to 4,909.39, 6,774.99 and 2,671.28 is: 3,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.39 : 6,774.99 = 2,671.28 : x
  2. Step 2: Convert to fraction form
    4,909.39/6,774.99 = 2,671.28/x
  3. Step 3: Cross multiply
    4,909.39x = 6,774.99 × 2,671.28
  4. Step 4: Simplify right side
    4,909.39x = 18,097,905.55
  5. Step 5: Solve for x
    x = 18,097,905.55/4,909.39
  6. Step 6: Final answer
    x = 3,686.39

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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.