Home / 1,821.41-2,725.47-1,577.49

Finding the Fourth Proportional to 1,821.41, 2,725.47 and 1,577.49

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Solution

The fourth proportional to 1,821.41, 2,725.47 and 1,577.49 is: 2,360.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.41 : 2,725.47 = 1,577.49 : x
  2. Step 2: Convert to fraction form
    1,821.41/2,725.47 = 1,577.49/x
  3. Step 3: Cross multiply
    1,821.41x = 2,725.47 × 1,577.49
  4. Step 4: Simplify right side
    1,821.41x = 4,299,401.67
  5. Step 5: Solve for x
    x = 4,299,401.67/1,821.41
  6. Step 6: Final answer
    x = 2,360.49

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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.