Home / 1,820.69-2,731.29-587.81

Finding the Fourth Proportional to 1,820.69, 2,731.29 and 587.81

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Solution

The fourth proportional to 1,820.69, 2,731.29 and 587.81 is: 881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.69 : 2,731.29 = 587.81 : x
  2. Step 2: Convert to fraction form
    1,820.69/2,731.29 = 587.81/x
  3. Step 3: Cross multiply
    1,820.69x = 2,731.29 × 587.81
  4. Step 4: Simplify right side
    1,820.69x = 1,605,468.84
  5. Step 5: Solve for x
    x = 1,605,468.84/1,820.69
  6. Step 6: Final answer
    x = 881.79

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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.