Home / 3,238.59-4,860.63-1,290.80

Finding the Fourth Proportional to 3,238.59, 4,860.63 and 1,290.80

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Solution

The fourth proportional to 3,238.59, 4,860.63 and 1,290.80 is: 1,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.59 : 4,860.63 = 1,290.80 : x
  2. Step 2: Convert to fraction form
    3,238.59/4,860.63 = 1,290.80/x
  3. Step 3: Cross multiply
    3,238.59x = 4,860.63 × 1,290.80
  4. Step 4: Simplify right side
    3,238.59x = 6,274,113.36
  5. Step 5: Solve for x
    x = 6,274,113.36/3,238.59
  6. Step 6: Final answer
    x = 1,937.30

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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.