Home / 6,717.07-10,075.80-1,787.21

Finding the Fourth Proportional to 6,717.07, 10,075.80 and 1,787.21

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Solution

The fourth proportional to 6,717.07, 10,075.80 and 1,787.21 is: 2,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.07 : 10,075.80 = 1,787.21 : x
  2. Step 2: Convert to fraction form
    6,717.07/10,075.80 = 1,787.21/x
  3. Step 3: Cross multiply
    6,717.07x = 10,075.80 × 1,787.21
  4. Step 4: Simplify right side
    6,717.07x = 18,007,520.14
  5. Step 5: Solve for x
    x = 18,007,520.14/6,717.07
  6. Step 6: Final answer
    x = 2,680.86

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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.