Home / 4,187.81-6,281.85-2,106.68

Finding the Fourth Proportional to 4,187.81, 6,281.85 and 2,106.68

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Solution

The fourth proportional to 4,187.81, 6,281.85 and 2,106.68 is: 3,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.81 : 6,281.85 = 2,106.68 : x
  2. Step 2: Convert to fraction form
    4,187.81/6,281.85 = 2,106.68/x
  3. Step 3: Cross multiply
    4,187.81x = 6,281.85 × 2,106.68
  4. Step 4: Simplify right side
    4,187.81x = 13,233,847.76
  5. Step 5: Solve for x
    x = 13,233,847.76/4,187.81
  6. Step 6: Final answer
    x = 3,160.09

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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.