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Finding the Fourth Proportional to 3,559.74, 5,339.61 and 1,709.70

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Solution

The fourth proportional to 3,559.74, 5,339.61 and 1,709.70 is: 2,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.74 : 5,339.61 = 1,709.70 : x
  2. Step 2: Convert to fraction form
    3,559.74/5,339.61 = 1,709.70/x
  3. Step 3: Cross multiply
    3,559.74x = 5,339.61 × 1,709.70
  4. Step 4: Simplify right side
    3,559.74x = 9,129,131.22
  5. Step 5: Solve for x
    x = 9,129,131.22/3,559.74
  6. Step 6: Final answer
    x = 2,564.55

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1.5x scale

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.