Home / 2,245.60-3,368.40-1,424.80

Finding the Fourth Proportional to 2,245.60, 3,368.40 and 1,424.80

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Solution

The fourth proportional to 2,245.60, 3,368.40 and 1,424.80 is: 2,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.60 : 3,368.40 = 1,424.80 : x
  2. Step 2: Convert to fraction form
    2,245.60/3,368.40 = 1,424.80/x
  3. Step 3: Cross multiply
    2,245.60x = 3,368.40 × 1,424.80
  4. Step 4: Simplify right side
    2,245.60x = 4,799,296.32
  5. Step 5: Solve for x
    x = 4,799,296.32/2,245.60
  6. Step 6: Final answer
    x = 2,137.20

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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.