Home / 5,171.11-7,756.80-1,473.40

Finding the Fourth Proportional to 5,171.11, 7,756.80 and 1,473.40

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Solution

The fourth proportional to 5,171.11, 7,756.80 and 1,473.40 is: 2,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.11 : 7,756.80 = 1,473.40 : x
  2. Step 2: Convert to fraction form
    5,171.11/7,756.80 = 1,473.40/x
  3. Step 3: Cross multiply
    5,171.11x = 7,756.80 × 1,473.40
  4. Step 4: Simplify right side
    5,171.11x = 11,428,869.12
  5. Step 5: Solve for x
    x = 11,428,869.12/5,171.11
  6. Step 6: Final answer
    x = 2,210.14

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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.