Home / 6,139.20-8,424.96-5,750.40

Finding the Fourth Proportional to 6,139.20, 8,424.96 and 5,750.40

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Solution

The fourth proportional to 6,139.20, 8,424.96 and 5,750.40 is: 7,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.20 : 8,424.96 = 5,750.40 : x
  2. Step 2: Convert to fraction form
    6,139.20/8,424.96 = 5,750.40/x
  3. Step 3: Cross multiply
    6,139.20x = 8,424.96 × 5,750.40
  4. Step 4: Simplify right side
    6,139.20x = 48,446,889.98
  5. Step 5: Solve for x
    x = 48,446,889.98/6,139.20
  6. Step 6: Final answer
    x = 7,891.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.