Home / 2,880.84-4,321.53-1,236.90

Finding the Fourth Proportional to 2,880.84, 4,321.53 and 1,236.90

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Solution

The fourth proportional to 2,880.84, 4,321.53 and 1,236.90 is: 1,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.84 : 4,321.53 = 1,236.90 : x
  2. Step 2: Convert to fraction form
    2,880.84/4,321.53 = 1,236.90/x
  3. Step 3: Cross multiply
    2,880.84x = 4,321.53 × 1,236.90
  4. Step 4: Simplify right side
    2,880.84x = 5,345,300.46
  5. Step 5: Solve for x
    x = 5,345,300.46/2,880.84
  6. Step 6: Final answer
    x = 1,855.47

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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.