Home / 2,461.46-3,392.57-1,987.61

Finding the Fourth Proportional to 2,461.46, 3,392.57 and 1,987.61

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Solution

The fourth proportional to 2,461.46, 3,392.57 and 1,987.61 is: 2,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.46 : 3,392.57 = 1,987.61 : x
  2. Step 2: Convert to fraction form
    2,461.46/3,392.57 = 1,987.61/x
  3. Step 3: Cross multiply
    2,461.46x = 3,392.57 × 1,987.61
  4. Step 4: Simplify right side
    2,461.46x = 6,743,094.06
  5. Step 5: Solve for x
    x = 6,743,094.06/2,461.46
  6. Step 6: Final answer
    x = 2,739.47

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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.