Home / 2,854.80-4,280.61-1,005.75

Finding the Fourth Proportional to 2,854.80, 4,280.61 and 1,005.75

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Solution

The fourth proportional to 2,854.80, 4,280.61 and 1,005.75 is: 1,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.80 : 4,280.61 = 1,005.75 : x
  2. Step 2: Convert to fraction form
    2,854.80/4,280.61 = 1,005.75/x
  3. Step 3: Cross multiply
    2,854.80x = 4,280.61 × 1,005.75
  4. Step 4: Simplify right side
    2,854.80x = 4,305,223.51
  5. Step 5: Solve for x
    x = 4,305,223.51/2,854.80
  6. Step 6: Final answer
    x = 1,508.06

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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.