Home / 5,237.16-7,855.81-1,288.41

Finding the Fourth Proportional to 5,237.16, 7,855.81 and 1,288.41

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Solution

The fourth proportional to 5,237.16, 7,855.81 and 1,288.41 is: 1,932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.16 : 7,855.81 = 1,288.41 : x
  2. Step 2: Convert to fraction form
    5,237.16/7,855.81 = 1,288.41/x
  3. Step 3: Cross multiply
    5,237.16x = 7,855.81 × 1,288.41
  4. Step 4: Simplify right side
    5,237.16x = 10,121,541.39
  5. Step 5: Solve for x
    x = 10,121,541.39/5,237.16
  6. Step 6: Final answer
    x = 1,932.64

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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.