Home / 4,621.28-6,920.40-2,884.64

Finding the Fourth Proportional to 4,621.28, 6,920.40 and 2,884.64

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Solution

The fourth proportional to 4,621.28, 6,920.40 and 2,884.64 is: 4,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.28 : 6,920.40 = 2,884.64 : x
  2. Step 2: Convert to fraction form
    4,621.28/6,920.40 = 2,884.64/x
  3. Step 3: Cross multiply
    4,621.28x = 6,920.40 × 2,884.64
  4. Step 4: Simplify right side
    4,621.28x = 19,962,862.66
  5. Step 5: Solve for x
    x = 19,962,862.66/4,621.28
  6. Step 6: Final answer
    x = 4,319.77

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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.