Home / 1,471.67-2,208.30-976.86

Finding the Fourth Proportional to 1,471.67, 2,208.30 and 976.86

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Solution

The fourth proportional to 1,471.67, 2,208.30 and 976.86 is: 1,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.67 : 2,208.30 = 976.86 : x
  2. Step 2: Convert to fraction form
    1,471.67/2,208.30 = 976.86/x
  3. Step 3: Cross multiply
    1,471.67x = 2,208.30 × 976.86
  4. Step 4: Simplify right side
    1,471.67x = 2,157,196.27
  5. Step 5: Solve for x
    x = 2,157,196.27/1,471.67
  6. Step 6: Final answer
    x = 1,465.82

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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.