Home / 3,130.92-4,697.69-1,375.02

Finding the Fourth Proportional to 3,130.92, 4,697.69 and 1,375.02

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Solution

The fourth proportional to 3,130.92, 4,697.69 and 1,375.02 is: 2,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.92 : 4,697.69 = 1,375.02 : x
  2. Step 2: Convert to fraction form
    3,130.92/4,697.69 = 1,375.02/x
  3. Step 3: Cross multiply
    3,130.92x = 4,697.69 × 1,375.02
  4. Step 4: Simplify right side
    3,130.92x = 6,459,410.83
  5. Step 5: Solve for x
    x = 6,459,410.83/3,130.92
  6. Step 6: Final answer
    x = 2,063.10

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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.