Home / 5,670.09-7,823.59-3,311.78

Finding the Fourth Proportional to 5,670.09, 7,823.59 and 3,311.78

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Solution

The fourth proportional to 5,670.09, 7,823.59 and 3,311.78 is: 4,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.09 : 7,823.59 = 3,311.78 : x
  2. Step 2: Convert to fraction form
    5,670.09/7,823.59 = 3,311.78/x
  3. Step 3: Cross multiply
    5,670.09x = 7,823.59 × 3,311.78
  4. Step 4: Simplify right side
    5,670.09x = 25,909,961.49
  5. Step 5: Solve for x
    x = 25,909,961.49/5,670.09
  6. Step 6: Final answer
    x = 4,569.59

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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.