Home / 2,962.64-4,439.28-1,920.80

Finding the Fourth Proportional to 2,962.64, 4,439.28 and 1,920.80

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Solution

The fourth proportional to 2,962.64, 4,439.28 and 1,920.80 is: 2,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.64 : 4,439.28 = 1,920.80 : x
  2. Step 2: Convert to fraction form
    2,962.64/4,439.28 = 1,920.80/x
  3. Step 3: Cross multiply
    2,962.64x = 4,439.28 × 1,920.80
  4. Step 4: Simplify right side
    2,962.64x = 8,526,969.02
  5. Step 5: Solve for x
    x = 8,526,969.02/2,962.64
  6. Step 6: Final answer
    x = 2,878.17

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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.