Home / 2,817.91-3,890.63-1,756.10

Finding the Fourth Proportional to 2,817.91, 3,890.63 and 1,756.10

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Solution

The fourth proportional to 2,817.91, 3,890.63 and 1,756.10 is: 2,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.91 : 3,890.63 = 1,756.10 : x
  2. Step 2: Convert to fraction form
    2,817.91/3,890.63 = 1,756.10/x
  3. Step 3: Cross multiply
    2,817.91x = 3,890.63 × 1,756.10
  4. Step 4: Simplify right side
    2,817.91x = 6,832,335.34
  5. Step 5: Solve for x
    x = 6,832,335.34/2,817.91
  6. Step 6: Final answer
    x = 2,424.61

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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.