Home / 5,430.11-8,135.78-2,966.63

Finding the Fourth Proportional to 5,430.11, 8,135.78 and 2,966.63

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Solution

The fourth proportional to 5,430.11, 8,135.78 and 2,966.63 is: 4,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.11 : 8,135.78 = 2,966.63 : x
  2. Step 2: Convert to fraction form
    5,430.11/8,135.78 = 2,966.63/x
  3. Step 3: Cross multiply
    5,430.11x = 8,135.78 × 2,966.63
  4. Step 4: Simplify right side
    5,430.11x = 24,135,793.51
  5. Step 5: Solve for x
    x = 24,135,793.51/5,430.11
  6. Step 6: Final answer
    x = 4,444.81

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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.