Home / 3,772.89-5,206.62-2,281.81

Finding the Fourth Proportional to 3,772.89, 5,206.62 and 2,281.81

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Solution

The fourth proportional to 3,772.89, 5,206.62 and 2,281.81 is: 3,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.89 : 5,206.62 = 2,281.81 : x
  2. Step 2: Convert to fraction form
    3,772.89/5,206.62 = 2,281.81/x
  3. Step 3: Cross multiply
    3,772.89x = 5,206.62 × 2,281.81
  4. Step 4: Simplify right side
    3,772.89x = 11,880,491.55
  5. Step 5: Solve for x
    x = 11,880,491.55/3,772.89
  6. Step 6: Final answer
    x = 3,148.91

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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.