Home / 7,312.12-10,968.16-2,381.75

Finding the Fourth Proportional to 7,312.12, 10,968.16 and 2,381.75

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Solution

The fourth proportional to 7,312.12, 10,968.16 and 2,381.75 is: 3,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.12 : 10,968.16 = 2,381.75 : x
  2. Step 2: Convert to fraction form
    7,312.12/10,968.16 = 2,381.75/x
  3. Step 3: Cross multiply
    7,312.12x = 10,968.16 × 2,381.75
  4. Step 4: Simplify right side
    7,312.12x = 26,123,415.08
  5. Step 5: Solve for x
    x = 26,123,415.08/7,312.12
  6. Step 6: Final answer
    x = 3,572.62

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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.