Home / 7,129.84-10,697.61-2,746.12

Finding the Fourth Proportional to 7,129.84, 10,697.61 and 2,746.12

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Solution

The fourth proportional to 7,129.84, 10,697.61 and 2,746.12 is: 4,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.84 : 10,697.61 = 2,746.12 : x
  2. Step 2: Convert to fraction form
    7,129.84/10,697.61 = 2,746.12/x
  3. Step 3: Cross multiply
    7,129.84x = 10,697.61 × 2,746.12
  4. Step 4: Simplify right side
    7,129.84x = 29,376,920.77
  5. Step 5: Solve for x
    x = 29,376,920.77/7,129.84
  6. Step 6: Final answer
    x = 4,120.28

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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.