Home / 3,013.73-4,158.94-1,687.45

Finding the Fourth Proportional to 3,013.73, 4,158.94 and 1,687.45

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Solution

The fourth proportional to 3,013.73, 4,158.94 and 1,687.45 is: 2,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.73 : 4,158.94 = 1,687.45 : x
  2. Step 2: Convert to fraction form
    3,013.73/4,158.94 = 1,687.45/x
  3. Step 3: Cross multiply
    3,013.73x = 4,158.94 × 1,687.45
  4. Step 4: Simplify right side
    3,013.73x = 7,018,003.30
  5. Step 5: Solve for x
    x = 7,018,003.30/3,013.73
  6. Step 6: Final answer
    x = 2,328.68

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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.