Home / 3,477.28-5,215.69-1,628.81

Finding the Fourth Proportional to 3,477.28, 5,215.69 and 1,628.81

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Solution

The fourth proportional to 3,477.28, 5,215.69 and 1,628.81 is: 2,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.28 : 5,215.69 = 1,628.81 : x
  2. Step 2: Convert to fraction form
    3,477.28/5,215.69 = 1,628.81/x
  3. Step 3: Cross multiply
    3,477.28x = 5,215.69 × 1,628.81
  4. Step 4: Simplify right side
    3,477.28x = 8,495,363.55
  5. Step 5: Solve for x
    x = 8,495,363.55/3,477.28
  6. Step 6: Final answer
    x = 2,443.11

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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.