Home / 7,243.21-10,864.72-2,312.79

Finding the Fourth Proportional to 7,243.21, 10,864.72 and 2,312.79

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Solution

The fourth proportional to 7,243.21, 10,864.72 and 2,312.79 is: 3,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.21 : 10,864.72 = 2,312.79 : x
  2. Step 2: Convert to fraction form
    7,243.21/10,864.72 = 2,312.79/x
  3. Step 3: Cross multiply
    7,243.21x = 10,864.72 × 2,312.79
  4. Step 4: Simplify right side
    7,243.21x = 25,127,815.77
  5. Step 5: Solve for x
    x = 25,127,815.77/7,243.21
  6. Step 6: Final answer
    x = 3,469.15

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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.