Home / 5,419.29-8,128.94-4,603.27

Finding the Fourth Proportional to 5,419.29, 8,128.94 and 4,603.27

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Solution

The fourth proportional to 5,419.29, 8,128.94 and 4,603.27 is: 6,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.29 : 8,128.94 = 4,603.27 : x
  2. Step 2: Convert to fraction form
    5,419.29/8,128.94 = 4,603.27/x
  3. Step 3: Cross multiply
    5,419.29x = 8,128.94 × 4,603.27
  4. Step 4: Simplify right side
    5,419.29x = 37,419,705.63
  5. Step 5: Solve for x
    x = 37,419,705.63/5,419.29
  6. Step 6: Final answer
    x = 6,904.91

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1.5x scale

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.