Home / 3,551.40-5,328.93-1,911.15

Finding the Fourth Proportional to 3,551.40, 5,328.93 and 1,911.15

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Solution

The fourth proportional to 3,551.40, 5,328.93 and 1,911.15 is: 2,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.40 : 5,328.93 = 1,911.15 : x
  2. Step 2: Convert to fraction form
    3,551.40/5,328.93 = 1,911.15/x
  3. Step 3: Cross multiply
    3,551.40x = 5,328.93 × 1,911.15
  4. Step 4: Simplify right side
    3,551.40x = 10,184,384.57
  5. Step 5: Solve for x
    x = 10,184,384.57/3,551.40
  6. Step 6: Final answer
    x = 2,867.71

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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.