Home / 2,679.50-4,018.98-1,218.26

Finding the Fourth Proportional to 2,679.50, 4,018.98 and 1,218.26

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Solution

The fourth proportional to 2,679.50, 4,018.98 and 1,218.26 is: 1,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.50 : 4,018.98 = 1,218.26 : x
  2. Step 2: Convert to fraction form
    2,679.50/4,018.98 = 1,218.26/x
  3. Step 3: Cross multiply
    2,679.50x = 4,018.98 × 1,218.26
  4. Step 4: Simplify right side
    2,679.50x = 4,896,162.57
  5. Step 5: Solve for x
    x = 4,896,162.57/2,679.50
  6. Step 6: Final answer
    x = 1,827.27

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1.5x scale

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.