Home / 3,915.63-5,402.25-2,235.87

Finding the Fourth Proportional to 3,915.63, 5,402.25 and 2,235.87

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Solution

The fourth proportional to 3,915.63, 5,402.25 and 2,235.87 is: 3,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.63 : 5,402.25 = 2,235.87 : x
  2. Step 2: Convert to fraction form
    3,915.63/5,402.25 = 2,235.87/x
  3. Step 3: Cross multiply
    3,915.63x = 5,402.25 × 2,235.87
  4. Step 4: Simplify right side
    3,915.63x = 12,078,728.71
  5. Step 5: Solve for x
    x = 12,078,728.71/3,915.63
  6. Step 6: Final answer
    x = 3,084.75

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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.