Home / 6,455.80-9,681.53-2,072.18

Finding the Fourth Proportional to 6,455.80, 9,681.53 and 2,072.18

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Solution

The fourth proportional to 6,455.80, 9,681.53 and 2,072.18 is: 3,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.80 : 9,681.53 = 2,072.18 : x
  2. Step 2: Convert to fraction form
    6,455.80/9,681.53 = 2,072.18/x
  3. Step 3: Cross multiply
    6,455.80x = 9,681.53 × 2,072.18
  4. Step 4: Simplify right side
    6,455.80x = 20,061,886.68
  5. Step 5: Solve for x
    x = 20,061,886.68/6,455.80
  6. Step 6: Final answer
    x = 3,107.58

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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.