Home / 7,245.72-10,869.21-2,862.14

Finding the Fourth Proportional to 7,245.72, 10,869.21 and 2,862.14

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Solution

The fourth proportional to 7,245.72, 10,869.21 and 2,862.14 is: 4,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.72 : 10,869.21 = 2,862.14 : x
  2. Step 2: Convert to fraction form
    7,245.72/10,869.21 = 2,862.14/x
  3. Step 3: Cross multiply
    7,245.72x = 10,869.21 × 2,862.14
  4. Step 4: Simplify right side
    7,245.72x = 31,109,146.36
  5. Step 5: Solve for x
    x = 31,109,146.36/7,245.72
  6. Step 6: Final answer
    x = 4,293.45

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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.