Home / 1,820.16-2,732.40-1,812.96

Finding the Fourth Proportional to 1,820.16, 2,732.40 and 1,812.96

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Solution

The fourth proportional to 1,820.16, 2,732.40 and 1,812.96 is: 2,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.16 : 2,732.40 = 1,812.96 : x
  2. Step 2: Convert to fraction form
    1,820.16/2,732.40 = 1,812.96/x
  3. Step 3: Cross multiply
    1,820.16x = 2,732.40 × 1,812.96
  4. Step 4: Simplify right side
    1,820.16x = 4,953,731.90
  5. Step 5: Solve for x
    x = 4,953,731.90/1,820.16
  6. Step 6: Final answer
    x = 2,721.59

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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.