Home / 3,539.60-4,885.80-2,491.92

Finding the Fourth Proportional to 3,539.60, 4,885.80 and 2,491.92

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Solution

The fourth proportional to 3,539.60, 4,885.80 and 2,491.92 is: 3,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.60 : 4,885.80 = 2,491.92 : x
  2. Step 2: Convert to fraction form
    3,539.60/4,885.80 = 2,491.92/x
  3. Step 3: Cross multiply
    3,539.60x = 4,885.80 × 2,491.92
  4. Step 4: Simplify right side
    3,539.60x = 12,175,022.74
  5. Step 5: Solve for x
    x = 12,175,022.74/3,539.60
  6. Step 6: Final answer
    x = 3,439.66

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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.