Home / 3,045.18-4,568.68-1,289.28

Finding the Fourth Proportional to 3,045.18, 4,568.68 and 1,289.28

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Solution

The fourth proportional to 3,045.18, 4,568.68 and 1,289.28 is: 1,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.18 : 4,568.68 = 1,289.28 : x
  2. Step 2: Convert to fraction form
    3,045.18/4,568.68 = 1,289.28/x
  3. Step 3: Cross multiply
    3,045.18x = 4,568.68 × 1,289.28
  4. Step 4: Simplify right side
    3,045.18x = 5,890,307.75
  5. Step 5: Solve for x
    x = 5,890,307.75/3,045.18
  6. Step 6: Final answer
    x = 1,934.31

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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.