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Finding the Fourth Proportional to 3,657.58, 5,488.80 and 1,709.94

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Solution

The fourth proportional to 3,657.58, 5,488.80 and 1,709.94 is: 2,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.58 : 5,488.80 = 1,709.94 : x
  2. Step 2: Convert to fraction form
    3,657.58/5,488.80 = 1,709.94/x
  3. Step 3: Cross multiply
    3,657.58x = 5,488.80 × 1,709.94
  4. Step 4: Simplify right side
    3,657.58x = 9,385,518.67
  5. Step 5: Solve for x
    x = 9,385,518.67/3,657.58
  6. Step 6: Final answer
    x = 2,566.05

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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.