Home / 2,985.10-4,447.64-2,817.43

Finding the Fourth Proportional to 2,985.10, 4,447.64 and 2,817.43

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Solution

The fourth proportional to 2,985.10, 4,447.64 and 2,817.43 is: 4,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.10 : 4,447.64 = 2,817.43 : x
  2. Step 2: Convert to fraction form
    2,985.10/4,447.64 = 2,817.43/x
  3. Step 3: Cross multiply
    2,985.10x = 4,447.64 × 2,817.43
  4. Step 4: Simplify right side
    2,985.10x = 12,530,910.29
  5. Step 5: Solve for x
    x = 12,530,910.29/2,985.10
  6. Step 6: Final answer
    x = 4,197.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.