Home / 1,780.70-2,664.38-1,725.34

Finding the Fourth Proportional to 1,780.70, 2,664.38 and 1,725.34

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Solution

The fourth proportional to 1,780.70, 2,664.38 and 1,725.34 is: 2,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.70 : 2,664.38 = 1,725.34 : x
  2. Step 2: Convert to fraction form
    1,780.70/2,664.38 = 1,725.34/x
  3. Step 3: Cross multiply
    1,780.70x = 2,664.38 × 1,725.34
  4. Step 4: Simplify right side
    1,780.70x = 4,596,957.86
  5. Step 5: Solve for x
    x = 4,596,957.86/1,780.70
  6. Step 6: Final answer
    x = 2,581.55

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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.