Home / 2,785.47-4,178.66-1,323.83

Finding the Fourth Proportional to 2,785.47, 4,178.66 and 1,323.83

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Solution

The fourth proportional to 2,785.47, 4,178.66 and 1,323.83 is: 1,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.47 : 4,178.66 = 1,323.83 : x
  2. Step 2: Convert to fraction form
    2,785.47/4,178.66 = 1,323.83/x
  3. Step 3: Cross multiply
    2,785.47x = 4,178.66 × 1,323.83
  4. Step 4: Simplify right side
    2,785.47x = 5,531,807.96
  5. Step 5: Solve for x
    x = 5,531,807.96/2,785.47
  6. Step 6: Final answer
    x = 1,985.95

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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.