Home / 2,218.18-3,060.98-1,223.44

Finding the Fourth Proportional to 2,218.18, 3,060.98 and 1,223.44

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Solution

The fourth proportional to 2,218.18, 3,060.98 and 1,223.44 is: 1,688.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.18 : 3,060.98 = 1,223.44 : x
  2. Step 2: Convert to fraction form
    2,218.18/3,060.98 = 1,223.44/x
  3. Step 3: Cross multiply
    2,218.18x = 3,060.98 × 1,223.44
  4. Step 4: Simplify right side
    2,218.18x = 3,744,925.37
  5. Step 5: Solve for x
    x = 3,744,925.37/2,218.18
  6. Step 6: Final answer
    x = 1,688.29

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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.