Home / 1,925.62-2,657.76-1,217.01

Finding the Fourth Proportional to 1,925.62, 2,657.76 and 1,217.01

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Solution

The fourth proportional to 1,925.62, 2,657.76 and 1,217.01 is: 1,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.62 : 2,657.76 = 1,217.01 : x
  2. Step 2: Convert to fraction form
    1,925.62/2,657.76 = 1,217.01/x
  3. Step 3: Cross multiply
    1,925.62x = 2,657.76 × 1,217.01
  4. Step 4: Simplify right side
    1,925.62x = 3,234,513.85
  5. Step 5: Solve for x
    x = 3,234,513.85/1,925.62
  6. Step 6: Final answer
    x = 1,679.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.