Home / 5,377.60-8,066.40-4,081.60

Finding the Fourth Proportional to 5,377.60, 8,066.40 and 4,081.60

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Solution

The fourth proportional to 5,377.60, 8,066.40 and 4,081.60 is: 6,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.60 : 8,066.40 = 4,081.60 : x
  2. Step 2: Convert to fraction form
    5,377.60/8,066.40 = 4,081.60/x
  3. Step 3: Cross multiply
    5,377.60x = 8,066.40 × 4,081.60
  4. Step 4: Simplify right side
    5,377.60x = 32,923,818.24
  5. Step 5: Solve for x
    x = 32,923,818.24/5,377.60
  6. Step 6: Final answer
    x = 6,122.40

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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.