Home / 5,390.27-8,085.41-3,417.87

Finding the Fourth Proportional to 5,390.27, 8,085.41 and 3,417.87

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Solution

The fourth proportional to 5,390.27, 8,085.41 and 3,417.87 is: 5,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.27 : 8,085.41 = 3,417.87 : x
  2. Step 2: Convert to fraction form
    5,390.27/8,085.41 = 3,417.87/x
  3. Step 3: Cross multiply
    5,390.27x = 8,085.41 × 3,417.87
  4. Step 4: Simplify right side
    5,390.27x = 27,634,878.78
  5. Step 5: Solve for x
    x = 27,634,878.78/5,390.27
  6. Step 6: Final answer
    x = 5,126.81

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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.