Home / 2,405.44-3,320.62-1,697.86

Finding the Fourth Proportional to 2,405.44, 3,320.62 and 1,697.86

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Solution

The fourth proportional to 2,405.44, 3,320.62 and 1,697.86 is: 2,343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.44 : 3,320.62 = 1,697.86 : x
  2. Step 2: Convert to fraction form
    2,405.44/3,320.62 = 1,697.86/x
  3. Step 3: Cross multiply
    2,405.44x = 3,320.62 × 1,697.86
  4. Step 4: Simplify right side
    2,405.44x = 5,637,947.87
  5. Step 5: Solve for x
    x = 5,637,947.87/2,405.44
  6. Step 6: Final answer
    x = 2,343.83

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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.