Home / 2,880.36-4,317.98-1,398.80

Finding the Fourth Proportional to 2,880.36, 4,317.98 and 1,398.80

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Solution

The fourth proportional to 2,880.36, 4,317.98 and 1,398.80 is: 2,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.36 : 4,317.98 = 1,398.80 : x
  2. Step 2: Convert to fraction form
    2,880.36/4,317.98 = 1,398.80/x
  3. Step 3: Cross multiply
    2,880.36x = 4,317.98 × 1,398.80
  4. Step 4: Simplify right side
    2,880.36x = 6,039,994.22
  5. Step 5: Solve for x
    x = 6,039,994.22/2,880.36
  6. Step 6: Final answer
    x = 2,096.96

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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.