Home / 6,931.12-10,402.54-2,774.04

Finding the Fourth Proportional to 6,931.12, 10,402.54 and 2,774.04

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Solution

The fourth proportional to 6,931.12, 10,402.54 and 2,774.04 is: 4,163.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.12 : 10,402.54 = 2,774.04 : x
  2. Step 2: Convert to fraction form
    6,931.12/10,402.54 = 2,774.04/x
  3. Step 3: Cross multiply
    6,931.12x = 10,402.54 × 2,774.04
  4. Step 4: Simplify right side
    6,931.12x = 28,857,062.06
  5. Step 5: Solve for x
    x = 28,857,062.06/6,931.12
  6. Step 6: Final answer
    x = 4,163.41

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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.