Home / 1,923.90-2,880.38-1,439.12

Finding the Fourth Proportional to 1,923.90, 2,880.38 and 1,439.12

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Solution

The fourth proportional to 1,923.90, 2,880.38 and 1,439.12 is: 2,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.90 : 2,880.38 = 1,439.12 : x
  2. Step 2: Convert to fraction form
    1,923.90/2,880.38 = 1,439.12/x
  3. Step 3: Cross multiply
    1,923.90x = 2,880.38 × 1,439.12
  4. Step 4: Simplify right side
    1,923.90x = 4,145,190.87
  5. Step 5: Solve for x
    x = 4,145,190.87/1,923.90
  6. Step 6: Final answer
    x = 2,154.58

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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.