Home / 2,769.85-4,154.71-1,125.99

Finding the Fourth Proportional to 2,769.85, 4,154.71 and 1,125.99

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Solution

The fourth proportional to 2,769.85, 4,154.71 and 1,125.99 is: 1,688.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.85 : 4,154.71 = 1,125.99 : x
  2. Step 2: Convert to fraction form
    2,769.85/4,154.71 = 1,125.99/x
  3. Step 3: Cross multiply
    2,769.85x = 4,154.71 × 1,125.99
  4. Step 4: Simplify right side
    2,769.85x = 4,678,159.10
  5. Step 5: Solve for x
    x = 4,678,159.10/2,769.85
  6. Step 6: Final answer
    x = 1,688.96

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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.