Home / 4,120.40-5,686.15-2,232

Finding the Fourth Proportional to 4,120.40, 5,686.15 and 2,232

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Solution

The fourth proportional to 4,120.40, 5,686.15 and 2,232 is: 3,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.40 : 5,686.15 = 2,232 : x
  2. Step 2: Convert to fraction form
    4,120.40/5,686.15 = 2,232/x
  3. Step 3: Cross multiply
    4,120.40x = 5,686.15 × 2,232
  4. Step 4: Simplify right side
    4,120.40x = 12,691,486.80
  5. Step 5: Solve for x
    x = 12,691,486.80/4,120.40
  6. Step 6: Final answer
    x = 3,080.16

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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.