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Finding the Fourth Proportional to 5,159.84, 7,118.15 and 3,169.67

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Solution

The fourth proportional to 5,159.84, 7,118.15 and 3,169.67 is: 4,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.84 : 7,118.15 = 3,169.67 : x
  2. Step 2: Convert to fraction form
    5,159.84/7,118.15 = 3,169.67/x
  3. Step 3: Cross multiply
    5,159.84x = 7,118.15 × 3,169.67
  4. Step 4: Simplify right side
    5,159.84x = 22,562,135.07
  5. Step 5: Solve for x
    x = 22,562,135.07/5,159.84
  6. Step 6: Final answer
    x = 4,372.65

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1.5x scale

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.