Home / 1,679.28-2,318.56-1,050.08

Finding the Fourth Proportional to 1,679.28, 2,318.56 and 1,050.08

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Solution

The fourth proportional to 1,679.28, 2,318.56 and 1,050.08 is: 1,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.28 : 2,318.56 = 1,050.08 : x
  2. Step 2: Convert to fraction form
    1,679.28/2,318.56 = 1,050.08/x
  3. Step 3: Cross multiply
    1,679.28x = 2,318.56 × 1,050.08
  4. Step 4: Simplify right side
    1,679.28x = 2,434,673.48
  5. Step 5: Solve for x
    x = 2,434,673.48/1,679.28
  6. Step 6: Final answer
    x = 1,449.83

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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.