Home / 5,390.93-8,088.36-2,271.72

Finding the Fourth Proportional to 5,390.93, 8,088.36 and 2,271.72

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Solution

The fourth proportional to 5,390.93, 8,088.36 and 2,271.72 is: 3,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.93 : 8,088.36 = 2,271.72 : x
  2. Step 2: Convert to fraction form
    5,390.93/8,088.36 = 2,271.72/x
  3. Step 3: Cross multiply
    5,390.93x = 8,088.36 × 2,271.72
  4. Step 4: Simplify right side
    5,390.93x = 18,374,489.18
  5. Step 5: Solve for x
    x = 18,374,489.18/5,390.93
  6. Step 6: Final answer
    x = 3,408.41

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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.