Home / 1,872.40-2,584.90-1,451.80

Finding the Fourth Proportional to 1,872.40, 2,584.90 and 1,451.80

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Solution

The fourth proportional to 1,872.40, 2,584.90 and 1,451.80 is: 2,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.40 : 2,584.90 = 1,451.80 : x
  2. Step 2: Convert to fraction form
    1,872.40/2,584.90 = 1,451.80/x
  3. Step 3: Cross multiply
    1,872.40x = 2,584.90 × 1,451.80
  4. Step 4: Simplify right side
    1,872.40x = 3,752,750.56
  5. Step 5: Solve for x
    x = 3,752,750.56/1,872.40
  6. Step 6: Final answer
    x = 2,004.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.