Home / 3,218.40-4,824.36-1,270.08

Finding the Fourth Proportional to 3,218.40, 4,824.36 and 1,270.08

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Solution

The fourth proportional to 3,218.40, 4,824.36 and 1,270.08 is: 1,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.40 : 4,824.36 = 1,270.08 : x
  2. Step 2: Convert to fraction form
    3,218.40/4,824.36 = 1,270.08/x
  3. Step 3: Cross multiply
    3,218.40x = 4,824.36 × 1,270.08
  4. Step 4: Simplify right side
    3,218.40x = 6,127,323.15
  5. Step 5: Solve for x
    x = 6,127,323.15/3,218.40
  6. Step 6: Final answer
    x = 1,903.84

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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.