Home / 3,206.25-4,807.53-1,257.39

Finding the Fourth Proportional to 3,206.25, 4,807.53 and 1,257.39

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Solution

The fourth proportional to 3,206.25, 4,807.53 and 1,257.39 is: 1,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.25 : 4,807.53 = 1,257.39 : x
  2. Step 2: Convert to fraction form
    3,206.25/4,807.53 = 1,257.39/x
  3. Step 3: Cross multiply
    3,206.25x = 4,807.53 × 1,257.39
  4. Step 4: Simplify right side
    3,206.25x = 6,044,940.15
  5. Step 5: Solve for x
    x = 6,044,940.15/3,206.25
  6. Step 6: Final answer
    x = 1,885.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.