Home / 1,812.34-2,498.74-1,251.84

Finding the Fourth Proportional to 1,812.34, 2,498.74 and 1,251.84

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Solution

The fourth proportional to 1,812.34, 2,498.74 and 1,251.84 is: 1,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.34 : 2,498.74 = 1,251.84 : x
  2. Step 2: Convert to fraction form
    1,812.34/2,498.74 = 1,251.84/x
  3. Step 3: Cross multiply
    1,812.34x = 2,498.74 × 1,251.84
  4. Step 4: Simplify right side
    1,812.34x = 3,128,022.68
  5. Step 5: Solve for x
    x = 3,128,022.68/1,812.34
  6. Step 6: Final answer
    x = 1,725.96

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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.