Home / 2,688.90-4,033.26-1,045.82

Finding the Fourth Proportional to 2,688.90, 4,033.26 and 1,045.82

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Solution

The fourth proportional to 2,688.90, 4,033.26 and 1,045.82 is: 1,568.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.90 : 4,033.26 = 1,045.82 : x
  2. Step 2: Convert to fraction form
    2,688.90/4,033.26 = 1,045.82/x
  3. Step 3: Cross multiply
    2,688.90x = 4,033.26 × 1,045.82
  4. Step 4: Simplify right side
    2,688.90x = 4,218,043.81
  5. Step 5: Solve for x
    x = 4,218,043.81/2,688.90
  6. Step 6: Final answer
    x = 1,568.69

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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.