Home / 2,817.08-3,886.38-1,885.88

Finding the Fourth Proportional to 2,817.08, 3,886.38 and 1,885.88

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Solution

The fourth proportional to 2,817.08, 3,886.38 and 1,885.88 is: 2,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.08 : 3,886.38 = 1,885.88 : x
  2. Step 2: Convert to fraction form
    2,817.08/3,886.38 = 1,885.88/x
  3. Step 3: Cross multiply
    2,817.08x = 3,886.38 × 1,885.88
  4. Step 4: Simplify right side
    2,817.08x = 7,329,246.31
  5. Step 5: Solve for x
    x = 7,329,246.31/2,817.08
  6. Step 6: Final answer
    x = 2,601.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.