Home / 2,820.98-4,231.47-1,154.76

Finding the Fourth Proportional to 2,820.98, 4,231.47 and 1,154.76

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Solution

The fourth proportional to 2,820.98, 4,231.47 and 1,154.76 is: 1,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.98 : 4,231.47 = 1,154.76 : x
  2. Step 2: Convert to fraction form
    2,820.98/4,231.47 = 1,154.76/x
  3. Step 3: Cross multiply
    2,820.98x = 4,231.47 × 1,154.76
  4. Step 4: Simplify right side
    2,820.98x = 4,886,332.30
  5. Step 5: Solve for x
    x = 4,886,332.30/2,820.98
  6. Step 6: Final answer
    x = 1,732.14

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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.