Home / 3,898.08-5,851.28-1,678.01

Finding the Fourth Proportional to 3,898.08, 5,851.28 and 1,678.01

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Solution

The fourth proportional to 3,898.08, 5,851.28 and 1,678.01 is: 2,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.08 : 5,851.28 = 1,678.01 : x
  2. Step 2: Convert to fraction form
    3,898.08/5,851.28 = 1,678.01/x
  3. Step 3: Cross multiply
    3,898.08x = 5,851.28 × 1,678.01
  4. Step 4: Simplify right side
    3,898.08x = 9,818,517.86
  5. Step 5: Solve for x
    x = 9,818,517.86/3,898.08
  6. Step 6: Final answer
    x = 2,518.81

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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.