Home / 2,855.04-4,281.35-1,005.70

Finding the Fourth Proportional to 2,855.04, 4,281.35 and 1,005.70

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Solution

The fourth proportional to 2,855.04, 4,281.35 and 1,005.70 is: 1,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.04 : 4,281.35 = 1,005.70 : x
  2. Step 2: Convert to fraction form
    2,855.04/4,281.35 = 1,005.70/x
  3. Step 3: Cross multiply
    2,855.04x = 4,281.35 × 1,005.70
  4. Step 4: Simplify right side
    2,855.04x = 4,305,748.67
  5. Step 5: Solve for x
    x = 4,305,748.67/2,855.04
  6. Step 6: Final answer
    x = 1,508.12

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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.