Home / 3,217.60-4,822.80-1,368.40

Finding the Fourth Proportional to 3,217.60, 4,822.80 and 1,368.40

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Solution

The fourth proportional to 3,217.60, 4,822.80 and 1,368.40 is: 2,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.60 : 4,822.80 = 1,368.40 : x
  2. Step 2: Convert to fraction form
    3,217.60/4,822.80 = 1,368.40/x
  3. Step 3: Cross multiply
    3,217.60x = 4,822.80 × 1,368.40
  4. Step 4: Simplify right side
    3,217.60x = 6,599,519.52
  5. Step 5: Solve for x
    x = 6,599,519.52/3,217.60
  6. Step 6: Final answer
    x = 2,051.07

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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.