Home / 1,656.03-2,479.29-1,289.73

Finding the Fourth Proportional to 1,656.03, 2,479.29 and 1,289.73

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Solution

The fourth proportional to 1,656.03, 2,479.29 and 1,289.73 is: 1,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.03 : 2,479.29 = 1,289.73 : x
  2. Step 2: Convert to fraction form
    1,656.03/2,479.29 = 1,289.73/x
  3. Step 3: Cross multiply
    1,656.03x = 2,479.29 × 1,289.73
  4. Step 4: Simplify right side
    1,656.03x = 3,197,614.69
  5. Step 5: Solve for x
    x = 3,197,614.69/1,656.03
  6. Step 6: Final answer
    x = 1,930.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.