Home / 2,218.04-3,060.91-1,223.43

Finding the Fourth Proportional to 2,218.04, 3,060.91 and 1,223.43

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Solution

The fourth proportional to 2,218.04, 3,060.91 and 1,223.43 is: 1,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.04 : 3,060.91 = 1,223.43 : x
  2. Step 2: Convert to fraction form
    2,218.04/3,060.91 = 1,223.43/x
  3. Step 3: Cross multiply
    2,218.04x = 3,060.91 × 1,223.43
  4. Step 4: Simplify right side
    2,218.04x = 3,744,809.12
  5. Step 5: Solve for x
    x = 3,744,809.12/2,218.04
  6. Step 6: Final answer
    x = 1,688.34

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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.