Home / 5,390.60-8,076.30-4,411.40

Finding the Fourth Proportional to 5,390.60, 8,076.30 and 4,411.40

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Solution

The fourth proportional to 5,390.60, 8,076.30 and 4,411.40 is: 6,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.60 : 8,076.30 = 4,411.40 : x
  2. Step 2: Convert to fraction form
    5,390.60/8,076.30 = 4,411.40/x
  3. Step 3: Cross multiply
    5,390.60x = 8,076.30 × 4,411.40
  4. Step 4: Simplify right side
    5,390.60x = 35,627,789.82
  5. Step 5: Solve for x
    x = 35,627,789.82/5,390.60
  6. Step 6: Final answer
    x = 6,609.24

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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.