Home / 2,638.64-3,641.21-1,576.99

Finding the Fourth Proportional to 2,638.64, 3,641.21 and 1,576.99

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Solution

The fourth proportional to 2,638.64, 3,641.21 and 1,576.99 is: 2,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.64 : 3,641.21 = 1,576.99 : x
  2. Step 2: Convert to fraction form
    2,638.64/3,641.21 = 1,576.99/x
  3. Step 3: Cross multiply
    2,638.64x = 3,641.21 × 1,576.99
  4. Step 4: Simplify right side
    2,638.64x = 5,742,134.86
  5. Step 5: Solve for x
    x = 5,742,134.86/2,638.64
  6. Step 6: Final answer
    x = 2,176.18

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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.