Home / 4,525.07-6,787.80-1,405.15

Finding the Fourth Proportional to 4,525.07, 6,787.80 and 1,405.15

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Solution

The fourth proportional to 4,525.07, 6,787.80 and 1,405.15 is: 2,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,525.07 : 6,787.80 = 1,405.15 : x
  2. Step 2: Convert to fraction form
    4,525.07/6,787.80 = 1,405.15/x
  3. Step 3: Cross multiply
    4,525.07x = 6,787.80 × 1,405.15
  4. Step 4: Simplify right side
    4,525.07x = 9,537,860.20
  5. Step 5: Solve for x
    x = 9,537,860.20/4,525.07
  6. Step 6: Final answer
    x = 2,107.78

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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.