Home / 2,869.35-4,306.72-1,409.55

Finding the Fourth Proportional to 2,869.35, 4,306.72 and 1,409.55

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Solution

The fourth proportional to 2,869.35, 4,306.72 and 1,409.55 is: 2,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.35 : 4,306.72 = 1,409.55 : x
  2. Step 2: Convert to fraction form
    2,869.35/4,306.72 = 1,409.55/x
  3. Step 3: Cross multiply
    2,869.35x = 4,306.72 × 1,409.55
  4. Step 4: Simplify right side
    2,869.35x = 6,070,537.18
  5. Step 5: Solve for x
    x = 6,070,537.18/2,869.35
  6. Step 6: Final answer
    x = 2,115.65

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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.