Home / 7,767.90-11,651.85-2,574.18

Finding the Fourth Proportional to 7,767.90, 11,651.85 and 2,574.18

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Solution

The fourth proportional to 7,767.90, 11,651.85 and 2,574.18 is: 3,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.90 : 11,651.85 = 2,574.18 : x
  2. Step 2: Convert to fraction form
    7,767.90/11,651.85 = 2,574.18/x
  3. Step 3: Cross multiply
    7,767.90x = 11,651.85 × 2,574.18
  4. Step 4: Simplify right side
    7,767.90x = 29,993,959.23
  5. Step 5: Solve for x
    x = 29,993,959.23/7,767.90
  6. Step 6: Final answer
    x = 3,861.27

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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.