Home / 5,185.63-7,156.11-2,827.72

Finding the Fourth Proportional to 5,185.63, 7,156.11 and 2,827.72

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Solution

The fourth proportional to 5,185.63, 7,156.11 and 2,827.72 is: 3,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.63 : 7,156.11 = 2,827.72 : x
  2. Step 2: Convert to fraction form
    5,185.63/7,156.11 = 2,827.72/x
  3. Step 3: Cross multiply
    5,185.63x = 7,156.11 × 2,827.72
  4. Step 4: Simplify right side
    5,185.63x = 20,235,475.37
  5. Step 5: Solve for x
    x = 20,235,475.37/5,185.63
  6. Step 6: Final answer
    x = 3,902.22

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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.