Home / 5,109.87-7,657.71-2,329.76

Finding the Fourth Proportional to 5,109.87, 7,657.71 and 2,329.76

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Solution

The fourth proportional to 5,109.87, 7,657.71 and 2,329.76 is: 3,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.87 : 7,657.71 = 2,329.76 : x
  2. Step 2: Convert to fraction form
    5,109.87/7,657.71 = 2,329.76/x
  3. Step 3: Cross multiply
    5,109.87x = 7,657.71 × 2,329.76
  4. Step 4: Simplify right side
    5,109.87x = 17,840,588.16
  5. Step 5: Solve for x
    x = 17,840,588.16/5,109.87
  6. Step 6: Final answer
    x = 3,491.40

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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.