Home / 5,148.12-7,707.78-2,677.56

Finding the Fourth Proportional to 5,148.12, 7,707.78 and 2,677.56

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Solution

The fourth proportional to 5,148.12, 7,707.78 and 2,677.56 is: 4,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.12 : 7,707.78 = 2,677.56 : x
  2. Step 2: Convert to fraction form
    5,148.12/7,707.78 = 2,677.56/x
  3. Step 3: Cross multiply
    5,148.12x = 7,707.78 × 2,677.56
  4. Step 4: Simplify right side
    5,148.12x = 20,638,043.42
  5. Step 5: Solve for x
    x = 20,638,043.42/5,148.12
  6. Step 6: Final answer
    x = 4,008.85

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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.