Home / 3,252.52-4,880.40-1,405.72

Finding the Fourth Proportional to 3,252.52, 4,880.40 and 1,405.72

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Solution

The fourth proportional to 3,252.52, 4,880.40 and 1,405.72 is: 2,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,252.52 : 4,880.40 = 1,405.72 : x
  2. Step 2: Convert to fraction form
    3,252.52/4,880.40 = 1,405.72/x
  3. Step 3: Cross multiply
    3,252.52x = 4,880.40 × 1,405.72
  4. Step 4: Simplify right side
    3,252.52x = 6,860,475.89
  5. Step 5: Solve for x
    x = 6,860,475.89/3,252.52
  6. Step 6: Final answer
    x = 2,109.28

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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.