Home / 2,975.11-4,459.21-1,125.05

Finding the Fourth Proportional to 2,975.11, 4,459.21 and 1,125.05

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Solution

The fourth proportional to 2,975.11, 4,459.21 and 1,125.05 is: 1,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.11 : 4,459.21 = 1,125.05 : x
  2. Step 2: Convert to fraction form
    2,975.11/4,459.21 = 1,125.05/x
  3. Step 3: Cross multiply
    2,975.11x = 4,459.21 × 1,125.05
  4. Step 4: Simplify right side
    2,975.11x = 5,016,809.10
  5. Step 5: Solve for x
    x = 5,016,809.10/2,975.11
  6. Step 6: Final answer
    x = 1,686.26

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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.