Home / 2,880.07-4,320.09-1,905.94

Finding the Fourth Proportional to 2,880.07, 4,320.09 and 1,905.94

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Solution

The fourth proportional to 2,880.07, 4,320.09 and 1,905.94 is: 2,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.07 : 4,320.09 = 1,905.94 : x
  2. Step 2: Convert to fraction form
    2,880.07/4,320.09 = 1,905.94/x
  3. Step 3: Cross multiply
    2,880.07x = 4,320.09 × 1,905.94
  4. Step 4: Simplify right side
    2,880.07x = 8,233,832.33
  5. Step 5: Solve for x
    x = 8,233,832.33/2,880.07
  6. Step 6: Final answer
    x = 2,858.91

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1.5x scale

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.