Home / 4,619.89-6,931.86-2,428.09

Finding the Fourth Proportional to 4,619.89, 6,931.86 and 2,428.09

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Solution

The fourth proportional to 4,619.89, 6,931.86 and 2,428.09 is: 3,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.89 : 6,931.86 = 2,428.09 : x
  2. Step 2: Convert to fraction form
    4,619.89/6,931.86 = 2,428.09/x
  3. Step 3: Cross multiply
    4,619.89x = 6,931.86 × 2,428.09
  4. Step 4: Simplify right side
    4,619.89x = 16,831,179.95
  5. Step 5: Solve for x
    x = 16,831,179.95/4,619.89
  6. Step 6: Final answer
    x = 3,643.20

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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.