Home / 2,858.97-4,288.79-1,103.55

Finding the Fourth Proportional to 2,858.97, 4,288.79 and 1,103.55

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Solution

The fourth proportional to 2,858.97, 4,288.79 and 1,103.55 is: 1,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.97 : 4,288.79 = 1,103.55 : x
  2. Step 2: Convert to fraction form
    2,858.97/4,288.79 = 1,103.55/x
  3. Step 3: Cross multiply
    2,858.97x = 4,288.79 × 1,103.55
  4. Step 4: Simplify right side
    2,858.97x = 4,732,888.69
  5. Step 5: Solve for x
    x = 4,732,888.69/2,858.97
  6. Step 6: Final answer
    x = 1,655.45

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1.5x scale

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.