Home / 4,215.49-5,818.26-2,799.30

Finding the Fourth Proportional to 4,215.49, 5,818.26 and 2,799.30

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Solution

The fourth proportional to 4,215.49, 5,818.26 and 2,799.30 is: 3,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.49 : 5,818.26 = 2,799.30 : x
  2. Step 2: Convert to fraction form
    4,215.49/5,818.26 = 2,799.30/x
  3. Step 3: Cross multiply
    4,215.49x = 5,818.26 × 2,799.30
  4. Step 4: Simplify right side
    4,215.49x = 16,287,055.22
  5. Step 5: Solve for x
    x = 16,287,055.22/4,215.49
  6. Step 6: Final answer
    x = 3,863.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.