Home / 2,776.48-3,831.08-1,641.99

Finding the Fourth Proportional to 2,776.48, 3,831.08 and 1,641.99

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Solution

The fourth proportional to 2,776.48, 3,831.08 and 1,641.99 is: 2,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.48 : 3,831.08 = 1,641.99 : x
  2. Step 2: Convert to fraction form
    2,776.48/3,831.08 = 1,641.99/x
  3. Step 3: Cross multiply
    2,776.48x = 3,831.08 × 1,641.99
  4. Step 4: Simplify right side
    2,776.48x = 6,290,595.05
  5. Step 5: Solve for x
    x = 6,290,595.05/2,776.48
  6. Step 6: Final answer
    x = 2,265.67

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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.