Home / 5,185.77-7,156.40-2,827.95

Finding the Fourth Proportional to 5,185.77, 7,156.40 and 2,827.95

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Solution

The fourth proportional to 5,185.77, 7,156.40 and 2,827.95 is: 3,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.77 : 7,156.40 = 2,827.95 : x
  2. Step 2: Convert to fraction form
    5,185.77/7,156.40 = 2,827.95/x
  3. Step 3: Cross multiply
    5,185.77x = 7,156.40 × 2,827.95
  4. Step 4: Simplify right side
    5,185.77x = 20,237,927.24
  5. Step 5: Solve for x
    x = 20,237,927.24/5,185.77
  6. Step 6: Final answer
    x = 3,902.59

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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.