Home / 6,931.20-10,395.60-2,546.40

Finding the Fourth Proportional to 6,931.20, 10,395.60 and 2,546.40

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Solution

The fourth proportional to 6,931.20, 10,395.60 and 2,546.40 is: 3,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.20 : 10,395.60 = 2,546.40 : x
  2. Step 2: Convert to fraction form
    6,931.20/10,395.60 = 2,546.40/x
  3. Step 3: Cross multiply
    6,931.20x = 10,395.60 × 2,546.40
  4. Step 4: Simplify right side
    6,931.20x = 26,471,355.84
  5. Step 5: Solve for x
    x = 26,471,355.84/6,931.20
  6. Step 6: Final answer
    x = 3,819.16

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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.