Home / 1,849.84-2,553.69-1,220.77

Finding the Fourth Proportional to 1,849.84, 2,553.69 and 1,220.77

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Solution

The fourth proportional to 1,849.84, 2,553.69 and 1,220.77 is: 1,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.84 : 2,553.69 = 1,220.77 : x
  2. Step 2: Convert to fraction form
    1,849.84/2,553.69 = 1,220.77/x
  3. Step 3: Cross multiply
    1,849.84x = 2,553.69 × 1,220.77
  4. Step 4: Simplify right side
    1,849.84x = 3,117,475.91
  5. Step 5: Solve for x
    x = 3,117,475.91/1,849.84
  6. Step 6: Final answer
    x = 1,685.27

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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.