Home / 2,480.58-3,715.47-2,188.98

Finding the Fourth Proportional to 2,480.58, 3,715.47 and 2,188.98

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Solution

The fourth proportional to 2,480.58, 3,715.47 and 2,188.98 is: 3,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.58 : 3,715.47 = 2,188.98 : x
  2. Step 2: Convert to fraction form
    2,480.58/3,715.47 = 2,188.98/x
  3. Step 3: Cross multiply
    2,480.58x = 3,715.47 × 2,188.98
  4. Step 4: Simplify right side
    2,480.58x = 8,133,089.52
  5. Step 5: Solve for x
    x = 8,133,089.52/2,480.58
  6. Step 6: Final answer
    x = 3,278.70

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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.