Home / 1,820.54-2,511.95-1,157.15

Finding the Fourth Proportional to 1,820.54, 2,511.95 and 1,157.15

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Solution

The fourth proportional to 1,820.54, 2,511.95 and 1,157.15 is: 1,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.54 : 2,511.95 = 1,157.15 : x
  2. Step 2: Convert to fraction form
    1,820.54/2,511.95 = 1,157.15/x
  3. Step 3: Cross multiply
    1,820.54x = 2,511.95 × 1,157.15
  4. Step 4: Simplify right side
    1,820.54x = 2,906,687.49
  5. Step 5: Solve for x
    x = 2,906,687.49/1,820.54
  6. Step 6: Final answer
    x = 1,596.61

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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.