Home / 4,290.17-6,434.78-2,912.36

Finding the Fourth Proportional to 4,290.17, 6,434.78 and 2,912.36

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Solution

The fourth proportional to 4,290.17, 6,434.78 and 2,912.36 is: 4,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.17 : 6,434.78 = 2,912.36 : x
  2. Step 2: Convert to fraction form
    4,290.17/6,434.78 = 2,912.36/x
  3. Step 3: Cross multiply
    4,290.17x = 6,434.78 × 2,912.36
  4. Step 4: Simplify right side
    4,290.17x = 18,740,349.15
  5. Step 5: Solve for x
    x = 18,740,349.15/4,290.17
  6. Step 6: Final answer
    x = 4,368.21

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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.