Home / 1,559.50-2,339.25-693.79

Finding the Fourth Proportional to 1,559.50, 2,339.25 and 693.79

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Solution

The fourth proportional to 1,559.50, 2,339.25 and 693.79 is: 1,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.50 : 2,339.25 = 693.79 : x
  2. Step 2: Convert to fraction form
    1,559.50/2,339.25 = 693.79/x
  3. Step 3: Cross multiply
    1,559.50x = 2,339.25 × 693.79
  4. Step 4: Simplify right side
    1,559.50x = 1,622,948.26
  5. Step 5: Solve for x
    x = 1,622,948.26/1,559.50
  6. Step 6: Final answer
    x = 1,040.69

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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.