Home / 1,717.20-2,576.61-1,688.04

Finding the Fourth Proportional to 1,717.20, 2,576.61 and 1,688.04

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Solution

The fourth proportional to 1,717.20, 2,576.61 and 1,688.04 is: 2,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.20 : 2,576.61 = 1,688.04 : x
  2. Step 2: Convert to fraction form
    1,717.20/2,576.61 = 1,688.04/x
  3. Step 3: Cross multiply
    1,717.20x = 2,576.61 × 1,688.04
  4. Step 4: Simplify right side
    1,717.20x = 4,349,420.74
  5. Step 5: Solve for x
    x = 4,349,420.74/1,717.20
  6. Step 6: Final answer
    x = 2,532.86

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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.