Home / 1,637.82-2,247.48-1,489.32

Finding the Fourth Proportional to 1,637.82, 2,247.48 and 1,489.32

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Solution

The fourth proportional to 1,637.82, 2,247.48 and 1,489.32 is: 2,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.82 : 2,247.48 = 1,489.32 : x
  2. Step 2: Convert to fraction form
    1,637.82/2,247.48 = 1,489.32/x
  3. Step 3: Cross multiply
    1,637.82x = 2,247.48 × 1,489.32
  4. Step 4: Simplify right side
    1,637.82x = 3,347,216.91
  5. Step 5: Solve for x
    x = 3,347,216.91/1,637.82
  6. Step 6: Final answer
    x = 2,043.70

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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.