Home / 1,682.40-2,322.36-1,507.44

Finding the Fourth Proportional to 1,682.40, 2,322.36 and 1,507.44

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Solution

The fourth proportional to 1,682.40, 2,322.36 and 1,507.44 is: 2,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.40 : 2,322.36 = 1,507.44 : x
  2. Step 2: Convert to fraction form
    1,682.40/2,322.36 = 1,507.44/x
  3. Step 3: Cross multiply
    1,682.40x = 2,322.36 × 1,507.44
  4. Step 4: Simplify right side
    1,682.40x = 3,500,818.36
  5. Step 5: Solve for x
    x = 3,500,818.36/1,682.40
  6. Step 6: Final answer
    x = 2,080.85

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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.