Home / 2,455.12-3,681.47-1,284.94

Finding the Fourth Proportional to 2,455.12, 3,681.47 and 1,284.94

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Solution

The fourth proportional to 2,455.12, 3,681.47 and 1,284.94 is: 1,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.12 : 3,681.47 = 1,284.94 : x
  2. Step 2: Convert to fraction form
    2,455.12/3,681.47 = 1,284.94/x
  3. Step 3: Cross multiply
    2,455.12x = 3,681.47 × 1,284.94
  4. Step 4: Simplify right side
    2,455.12x = 4,730,468.65
  5. Step 5: Solve for x
    x = 4,730,468.65/2,455.12
  6. Step 6: Final answer
    x = 1,926.78

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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.