Home / 5,458.08-8,188.11-3,120.72

Finding the Fourth Proportional to 5,458.08, 8,188.11 and 3,120.72

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Solution

The fourth proportional to 5,458.08, 8,188.11 and 3,120.72 is: 4,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.08 : 8,188.11 = 3,120.72 : x
  2. Step 2: Convert to fraction form
    5,458.08/8,188.11 = 3,120.72/x
  3. Step 3: Cross multiply
    5,458.08x = 8,188.11 × 3,120.72
  4. Step 4: Simplify right side
    5,458.08x = 25,552,798.64
  5. Step 5: Solve for x
    x = 25,552,798.64/5,458.08
  6. Step 6: Final answer
    x = 4,681.65

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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.