Home / 3,013.79-4,158.98-1,687.54

Finding the Fourth Proportional to 3,013.79, 4,158.98 and 1,687.54

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Solution

The fourth proportional to 3,013.79, 4,158.98 and 1,687.54 is: 2,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.79 : 4,158.98 = 1,687.54 : x
  2. Step 2: Convert to fraction form
    3,013.79/4,158.98 = 1,687.54/x
  3. Step 3: Cross multiply
    3,013.79x = 4,158.98 × 1,687.54
  4. Step 4: Simplify right side
    3,013.79x = 7,018,415.88
  5. Step 5: Solve for x
    x = 7,018,415.88/3,013.79
  6. Step 6: Final answer
    x = 2,328.77

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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.