Home / 6,787.80-10,182.24-3,090.15

Finding the Fourth Proportional to 6,787.80, 10,182.24 and 3,090.15

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Solution

The fourth proportional to 6,787.80, 10,182.24 and 3,090.15 is: 4,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.80 : 10,182.24 = 3,090.15 : x
  2. Step 2: Convert to fraction form
    6,787.80/10,182.24 = 3,090.15/x
  3. Step 3: Cross multiply
    6,787.80x = 10,182.24 × 3,090.15
  4. Step 4: Simplify right side
    6,787.80x = 31,464,648.94
  5. Step 5: Solve for x
    x = 31,464,648.94/6,787.80
  6. Step 6: Final answer
    x = 4,635.47

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1.5x scale

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.