Home / 5,670.30-7,824.89-3,280.61

Finding the Fourth Proportional to 5,670.30, 7,824.89 and 3,280.61

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Solution

The fourth proportional to 5,670.30, 7,824.89 and 3,280.61 is: 4,527.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.30 : 7,824.89 = 3,280.61 : x
  2. Step 2: Convert to fraction form
    5,670.30/7,824.89 = 3,280.61/x
  3. Step 3: Cross multiply
    5,670.30x = 7,824.89 × 3,280.61
  4. Step 4: Simplify right side
    5,670.30x = 25,670,356.86
  5. Step 5: Solve for x
    x = 25,670,356.86/5,670.30
  6. Step 6: Final answer
    x = 4,527.16

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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.