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Finding the Fourth Proportional to 1,885.92, 2,579.48 and 1,855.68

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Solution

The fourth proportional to 1,885.92, 2,579.48 and 1,855.68 is: 2,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.92 : 2,579.48 = 1,855.68 : x
  2. Step 2: Convert to fraction form
    1,885.92/2,579.48 = 1,855.68/x
  3. Step 3: Cross multiply
    1,885.92x = 2,579.48 × 1,855.68
  4. Step 4: Simplify right side
    1,885.92x = 4,786,689.45
  5. Step 5: Solve for x
    x = 4,786,689.45/1,885.92
  6. Step 6: Final answer
    x = 2,538.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.