Home / 5,475.81-8,214.17-2,187.11

Finding the Fourth Proportional to 5,475.81, 8,214.17 and 2,187.11

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Solution

The fourth proportional to 5,475.81, 8,214.17 and 2,187.11 is: 3,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.81 : 8,214.17 = 2,187.11 : x
  2. Step 2: Convert to fraction form
    5,475.81/8,214.17 = 2,187.11/x
  3. Step 3: Cross multiply
    5,475.81x = 8,214.17 × 2,187.11
  4. Step 4: Simplify right side
    5,475.81x = 17,965,241.34
  5. Step 5: Solve for x
    x = 17,965,241.34/5,475.81
  6. Step 6: Final answer
    x = 3,280.84

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1.5x scale

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.