Home / 7,728.75-10,665.68-4,585.55

Finding the Fourth Proportional to 7,728.75, 10,665.68 and 4,585.55

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Solution

The fourth proportional to 7,728.75, 10,665.68 and 4,585.55 is: 6,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.75 : 10,665.68 = 4,585.55 : x
  2. Step 2: Convert to fraction form
    7,728.75/10,665.68 = 4,585.55/x
  3. Step 3: Cross multiply
    7,728.75x = 10,665.68 × 4,585.55
  4. Step 4: Simplify right side
    7,728.75x = 48,907,932.67
  5. Step 5: Solve for x
    x = 48,907,932.67/7,728.75
  6. Step 6: Final answer
    x = 6,328.05

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Half scale
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Double scale
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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.