Home / 1,725.23-2,380.10-1,201.56

Finding the Fourth Proportional to 1,725.23, 2,380.10 and 1,201.56

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Solution

The fourth proportional to 1,725.23, 2,380.10 and 1,201.56 is: 1,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.23 : 2,380.10 = 1,201.56 : x
  2. Step 2: Convert to fraction form
    1,725.23/2,380.10 = 1,201.56/x
  3. Step 3: Cross multiply
    1,725.23x = 2,380.10 × 1,201.56
  4. Step 4: Simplify right side
    1,725.23x = 2,859,826.95
  5. Step 5: Solve for x
    x = 2,859,826.95/1,725.23
  6. Step 6: Final answer
    x = 1,657.65

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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.