Home / 3,685.31-5,085.60-2,192.88

Finding the Fourth Proportional to 3,685.31, 5,085.60 and 2,192.88

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Solution

The fourth proportional to 3,685.31, 5,085.60 and 2,192.88 is: 3,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.31 : 5,085.60 = 2,192.88 : x
  2. Step 2: Convert to fraction form
    3,685.31/5,085.60 = 2,192.88/x
  3. Step 3: Cross multiply
    3,685.31x = 5,085.60 × 2,192.88
  4. Step 4: Simplify right side
    3,685.31x = 11,152,110.53
  5. Step 5: Solve for x
    x = 11,152,110.53/3,685.31
  6. Step 6: Final answer
    x = 3,026.10

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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.