Home / 1,552.92-2,142.06-1,222.44

Finding the Fourth Proportional to 1,552.92, 2,142.06 and 1,222.44

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Solution

The fourth proportional to 1,552.92, 2,142.06 and 1,222.44 is: 1,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.92 : 2,142.06 = 1,222.44 : x
  2. Step 2: Convert to fraction form
    1,552.92/2,142.06 = 1,222.44/x
  3. Step 3: Cross multiply
    1,552.92x = 2,142.06 × 1,222.44
  4. Step 4: Simplify right side
    1,552.92x = 2,618,539.83
  5. Step 5: Solve for x
    x = 2,618,539.83/1,552.92
  6. Step 6: Final answer
    x = 1,686.20

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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.