Home / 1,709.89-2,358.08-1,079.33

Finding the Fourth Proportional to 1,709.89, 2,358.08 and 1,079.33

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Solution

The fourth proportional to 1,709.89, 2,358.08 and 1,079.33 is: 1,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.89 : 2,358.08 = 1,079.33 : x
  2. Step 2: Convert to fraction form
    1,709.89/2,358.08 = 1,079.33/x
  3. Step 3: Cross multiply
    1,709.89x = 2,358.08 × 1,079.33
  4. Step 4: Simplify right side
    1,709.89x = 2,545,146.61
  5. Step 5: Solve for x
    x = 2,545,146.61/1,709.89
  6. Step 6: Final answer
    x = 1,488.48

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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.