Home / 2,687.37-4,031.66-1,455.90

Finding the Fourth Proportional to 2,687.37, 4,031.66 and 1,455.90

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Solution

The fourth proportional to 2,687.37, 4,031.66 and 1,455.90 is: 2,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.37 : 4,031.66 = 1,455.90 : x
  2. Step 2: Convert to fraction form
    2,687.37/4,031.66 = 1,455.90/x
  3. Step 3: Cross multiply
    2,687.37x = 4,031.66 × 1,455.90
  4. Step 4: Simplify right side
    2,687.37x = 5,869,693.79
  5. Step 5: Solve for x
    x = 5,869,693.79/2,687.37
  6. Step 6: Final answer
    x = 2,184.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.