Home / 2,687.02-4,030.07-1,225.83

Finding the Fourth Proportional to 2,687.02, 4,030.07 and 1,225.83

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Solution

The fourth proportional to 2,687.02, 4,030.07 and 1,225.83 is: 1,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.02 : 4,030.07 = 1,225.83 : x
  2. Step 2: Convert to fraction form
    2,687.02/4,030.07 = 1,225.83/x
  3. Step 3: Cross multiply
    2,687.02x = 4,030.07 × 1,225.83
  4. Step 4: Simplify right side
    2,687.02x = 4,940,180.71
  5. Step 5: Solve for x
    x = 4,940,180.71/2,687.02
  6. Step 6: Final answer
    x = 1,838.54

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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.