Home / 1,646.12-2,259.56-1,455.44

Finding the Fourth Proportional to 1,646.12, 2,259.56 and 1,455.44

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Solution

The fourth proportional to 1,646.12, 2,259.56 and 1,455.44 is: 1,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.12 : 2,259.56 = 1,455.44 : x
  2. Step 2: Convert to fraction form
    1,646.12/2,259.56 = 1,455.44/x
  3. Step 3: Cross multiply
    1,646.12x = 2,259.56 × 1,455.44
  4. Step 4: Simplify right side
    1,646.12x = 3,288,635.43
  5. Step 5: Solve for x
    x = 3,288,635.43/1,646.12
  6. Step 6: Final answer
    x = 1,997.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.