Home / 2,859.49-4,282.80-1,540.90

Finding the Fourth Proportional to 2,859.49, 4,282.80 and 1,540.90

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Solution

The fourth proportional to 2,859.49, 4,282.80 and 1,540.90 is: 2,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.49 : 4,282.80 = 1,540.90 : x
  2. Step 2: Convert to fraction form
    2,859.49/4,282.80 = 1,540.90/x
  3. Step 3: Cross multiply
    2,859.49x = 4,282.80 × 1,540.90
  4. Step 4: Simplify right side
    2,859.49x = 6,599,366.52
  5. Step 5: Solve for x
    x = 6,599,366.52/2,859.49
  6. Step 6: Final answer
    x = 2,307.88

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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.