Home / 7,727.78-10,665.88-4,370.65

Finding the Fourth Proportional to 7,727.78, 10,665.88 and 4,370.65

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Solution

The fourth proportional to 7,727.78, 10,665.88 and 4,370.65 is: 6,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.78 : 10,665.88 = 4,370.65 : x
  2. Step 2: Convert to fraction form
    7,727.78/10,665.88 = 4,370.65/x
  3. Step 3: Cross multiply
    7,727.78x = 10,665.88 × 4,370.65
  4. Step 4: Simplify right side
    7,727.78x = 46,616,790.83
  5. Step 5: Solve for x
    x = 46,616,790.83/7,727.78
  6. Step 6: Final answer
    x = 6,032.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.